dairy manual htst 1385739381061 eng

28
1 Chapter 11 - H.T.S.T. Pasteurization Tasks Dairy Establishment Inspection Manual HTST System Flow Task Inspection Criteria 1.11.01.01 Up-To-Date and Accurate (HS=3) A. Flow schematic Available; easily accessible Complete o all HTST components Accurate; up-to-date 1.11.01.02 No Cross- Connections (HS=1) A. HTST system free of cross-connections between: For acceptable segregation between raw and pasteurized products o refer to the specific requirements in Chapter 11 For other applications (i.e. washes or Amini-washes@ while connected to product lines) o refer to Appendix 19 - 10 for assessment of applications B. HTST actual piping verified with schematic Critical Control Records 1 Task Inspection Criteria 1.11.02.01 Temperature and Time Requirements (HS=2) A. A representative sampling of plant's records must be assessed Complete records for all products processed Minimum holding time and minimum temperature required must be met. See text for pasteurization requirements

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Page 1: Dairy Manual Htst 1385739381061 Eng

1

Chapter 11 - H.T.S.T. Pasteurization Tasks

Dairy Establishment Inspection Manual

HTST System Flow

Task Inspection Criteria

1.11.01.01 Up-To-Date and Accurate (HS=3)

A. Flow schematic

Available; easily accessible

Complete o all HTST components

Accurate; up-to-date

1.11.01.02 No Cross-Connections (HS=1)

A. HTST system free of cross-connections between:

For acceptable segregation between raw and pasteurized products

o refer to the specific requirements in Chapter 11

For other applications (i.e. washes or Amini-washes@ while connected to product lines)

o refer to Appendix 19 - 10 for assessment of applications

B. HTST actual piping verified with schematic

Critical Control Records 1

Task Inspection Criteria

1.11.02.01 Temperature and Time Requirements(HS=2)

A. A representative sampling of plant's records must be assessed

Complete records for all products processed

Minimum holding time and minimum temperature required must be met. See text for pasteurization requirements

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Critical Control Records 2

Task Inspection Criteria

1.11.02.02 Process Control Records (HS=2)

A. A representative sampling of plant's records must be assessed

STLR processing records provide the followingpermanent data on every 12 hour chart:

o plant name and address or registration numbero date, shift and batch number where applicableo STLR identification when more than one is

usedo product type and amount of product processedo identification of CIP cleaning cycles, including

Amini-wash@ cycleso reading of indicating thermometer during

processing. This reading must never be lowerthan recording thermometer reading

o cut-in/cut-out temperatures at the beginning ofproduction and when a new divert temperatureis selected (for production runs of > 12 hours anew cut-in/cut-out is not required when thechart is changed)

o record of time the flow diversion device is inthe forward flow position

o unusual occurrences (include reason and timeof occurrence)

o signature or initials of the operator

Meter Based Timing System flow records provide thefollowing information on every 12 hour record: (ifapplicable)

o plant name and address or registration numbero dateo pasteurizer numbero

oproduct processed

movement between forward and divert flowo synchronized time with STLR charto frequency or event pen informationo signature or initials of the operatoro unusual occurrences

No overlapping of recordings Record is replaced daily Satisfactory follow up for out of specification findings

and documentation of actions taken

1.11.02.03 Retention of Process Control Records (HS=3)

A. Time-frame

Minimum of one year period

As determined by responsible regulatory agency; or

Until the finished product has been consumed (if morethan one year)

Constant Level Tank

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Task Inspection Criteria

1.11.03.01 General Conditions (HS=3)

A. General Inspection Criteria for Dairy Plant Equipment

B. Specific Areas of Interest

Stainless steel construction

Clean and good condition

1.11.03.02 Design (HS=2)

A. Requirements

Air shall not be drawn in pasteurizer when operating at maximum capacity of FCD

o Raw product to drain to the outlet before the outlet becomes uncovered. Could be accomplished by:

o bottom of the tank sloped by at least 2% to the outlet

o top of the outlet pipe is lower than the lowest point in the tank

1.11.03.03 Cover (HS=3)

A. Requirements

Removable o independent cover; or o inspection port

All openings flanged upwards and covered

Sanitary umbrella deflector on pipelines (excluding directly clamped lines) that enter through the cover

Used during processing

1.11.03.04 Overflow Point/Diameter (HS=2)

A. Overflow Point

Lower than the lowest point of raw regenerator

Satisfactory type o rim of the tank; or o top of outlet (below the rim)

Diameter at least twice that of the largest raw product inlet pipe

1.11.03.05 Airspace (HS=2)

A. Leak detect, divert, CIP line/spray ball, water and milk recycle lines

Terminate and break to atmosphere

Break must be at least two pipe diameters of the largest return line above maximum overflow point

1.11.03.06 Level Control Device (HS=3)

A. Requirements

Automatic device

Sanitary design and construction

Page 4: Dairy Manual Htst 1385739381061 Eng

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Booster Pump

Task Inspection Criteria

1.11.04.01 General Conditions (HS=3)

A. Requirements

Clean and in good condition

Centrifugal type

Entrapment of the product in the by-pass line is precluded by:

o close coupled by-pass connections, or o design of the valve permitting slight

movement of the product through the by-pass line, or

o other equally effective system

No interference of by-pass valve with free draining of raw regenerator to CLT

o fail safe, normally open position during divert

1.11.04.02 Location (HS=2)

A. Requirements

Located between the CLT and inlet of raw regenerator

1.11.04.03 Interwiring (HS=2)

A. Requirements

Only operates when o FCD is operating o proper pressure differential is achieved in the

regeneration section o FDD is in forward flow (both divert and leak

detect valve in forward flow)

Tested upon installation and at least every 6 months thereafter, and when changes occur

o appropriate records of testing on file

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Regeneration

Task Inspection Criteria

1.11.05.01 General Conditions (HS=2)

A. Heat Transfer Plates

Stainless steel or other corrosion resistant material

Sanitary design

Clean and good condition o no visible pinholes o equipped with leakage grooves o gaskets in good condition (not compressed or

show signs of wear) o no leaks at plate gaskets during operation o no milk remnants, milkstone or foreign

particles

Plant records to indicate annual pinhole testing or more often if required to ensure integrity

o document the cause of failure (e.g. age compression, metal fatigue), action taken to correct failure, plate replacement

1.11.05.02 Shutdown Capability (HS=2)

A. Design

Raw product inlet at the lowest point of regenerator o second regenerators of dual regenerator

systems many hae inlet at top or bottom

Drain holes (at least 1.59 mm or 0.0625") drilled in deflector plates (if present).

o If deflector plates are back to back the upstream drain hole is large enough to allow for CIP cleaning

Free draining to CLT o no valves or pumps that block the flow to CLT o provision for free draining pathway from the

second stage regenerator during shutdown (applicable to two stage regenerators)

1.11.05.03 Pressure Differentials (HS=2)

A. Operation (System with booster pump)

Pressure on the raw side of the regenerator must always be lower by 14 kPa (2 p.s.i.) than pasteurized side as confirmed by PDC

B. System without booster pump

Appopriate system layout C. Milk-to-heat transfer medium-to-milk type regenerators

Pressure on the raw side/media side of the regenerator must always be lower by 14 kPa (2 p.s.i.) than the pasteurized side as confirmed by a PDC

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Flow Control Device (FCD)

Task Inspection Criteria

1.11.06.01 General Conditions (HS=2)

A. Design

Proper type of system o positive pump or o homogenizer or o Meter Based Timing System

B. Condition

Stainless steel or other corrosion resistant material

Clean and in good condition

C. Location

Upstream from holding tube

D. Operation

Cannot be excluded from the system during operation

No back-flow through FCD in the event of a system shutdown

Mechanical wear will not increase capacity (flow rate)

1.11.06.02 Set and Sealed (HS=1)

A. Procedure

Set at legal holding time obtained at the fastest flow rate with no back pressure i.e.

o all appropriate components sealed, ie. pumps, belts

o at the maximum operating capacity o with separators by-passed o zero-valve pressure on the homogenizer o vacuum equipment operating at maximum

vacuum if it is downstream of Flow Diversion Device (FDD)

Sealed at fastest flow rate giving legal hold time

Checked upon installation and annually thereafter o appropriate records of testing on file

Re-evaluated and re-sealed (if necessary) after any alterations or repairs. Refer to the written text for the exception for when belts are replaced.

B. Records

Accurate and complete o include information of all alterations or repairs

Available

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Flow Control Device (FCD)

Task Inspection Criteria

1.11.06.03 Fail Safe (Operation) Capability (HS=2)

A. General Conditions

Inter-wired properly with FDD and Safety Thermal Limit Recorder (STLR) micro-switches

o FCD only operates when FDD is in safe forward or fully diverted position

Time delay relay (if present) o not more than 1 sec

No by-pass line during processing

Evaluated upon installation, at least every 6 months thereafter and whenever micro-switch is re-set or replaced

o appropriate records of testing on file

B. Homogenizer Used as FCD

No by-pass line during processing

C. Meter Based Timing System used as FCD

Must have appropriate controls (See Appendix 19 - 4) o High flow alarm: divert flow occurs when flow

rate is higher than the value at which holding time was measured

o Low flow/Signal loss alarm: divert flow occurs upon low flow or signal loss

o Flow cut-in and cut-out checked and recorded o Alarm pen tracks with flow recorder pen o Interwired with FDD to diver during alarm

conditions

Evaluated upon installation, at least every 6 months thereafter and when alterations occur

o appropriate records of testing on file

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Heating/Cooling

Task Inspection Criteria

1.11.07.01 General Conditions - Heating (HS=2)

A. Heat Transfer Plates

Stainless steel or other corrosion resistant material

Sanitary Design

Clean and good condition o no visible pinholes o gaskets equipped with leakage grooves and in

good condition (not compressed or show signs of wear)

o no leaks at plate gaskets during operation o no excessive mineral scale on "medium" side o no gasket particles and other foreign debris

Plant records to indicate annual pinhole testing or more often if required to ensure integrity

o document the cause of failure (e.g. age, compression, metal fatigue), action taken to correct failure, plate replacement

1.11.07.02 HeatingMedium HS=3)

A. Quality

Culinary steam/hot water

Boiler chemicals/additives must be dairy safe and approved

Appropriate follow-up documented

1.11.07.03 General Conditions - Cooling (HS=2)

A. Heat Transfer Plates

Stainless steel or other corrosion resistant material

Sanitary Design

Clean and good condition o no visible pinholes o gaskets equipped with leakage grooves and in

good condition (not compressed or show signs of wear)

o no leaks at plate gaskets during operation o no excessive mineral scale on "medium" side o no gasket particles and other foreign debris

Plant records to indicate annual pinhole testing or more often if required to ensure integrity

o document the cause of failure (e.g. age, compression, metal fatigue), action taken to correct failure, plate replacement

1.11.07.04 Pressure Differentials Cooling (HS=2)

A. Cooling Medium Pressure Monitored

Must be at least 14 kPa (2 p.s.i.) less than product pressure during forward flow. During diverted flow and shut down conditions, higher pressure is maintained on the pasteurized product side

Checked daily and recorded

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Task Inspection Criteria

Requires either an automated mechanism or written program

If automated mechanism must meet the following: o cooling medium stopped or diverted and the

cooling medium side vented to atmosphere: during forward flow, when the product pressure on the pasteurized product side drops to within 2 psi of the cooling medium side of the plates and during diverted flow andshutdown conditions.

o If product vacuum breaker is in use, venting of medium side shall be at an elevation below that of the product vacuum breaker

o demonstrate to regulatory authority

If there is no automated mechanism, establishment

has a written program which includes the

following: o person responsible, what is done, how it is

done, frequency, records to be kept and results of monitoring, verification procedures, actions taken for deviant situations, parameters of acceptability/unacceptability, preventative measures.

o records of pressures recorded a minimum of twice a day during production (at beginning and end of run).

o microbial cooling media checks of at least once per week per week

o pH testing of cooling media at least once a week

o visual cooling media checks at least once per week

o pinhole testing and plate teardowns once every six months

o plate replacement program.

1.11.07.05 Cooling Medium (HS=3)

A. Quality

Cooling media checked at least monthly for microorganisms (e.g. psychrotrophs, coliforms (or at least once per week depending upon establishment controls)

Cooling medium chemicals/additives must be dairy safe and approved

Records of cooling water additives and cooling media products used and microbial testing results

Appropriate follow-up documented

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Holding

Task Inspection Criteria

1.11.08.01 General Conditions (HS=3)

A. Holding Tube and Sensing Chamber

Clean and in good condition

Installed in correct location o after FCD with no intervening flow promoters o after heating section o prior to FDD

No portion of tube can be left out

Free of external heat source

If insulated, insulation must be easily removed to allow for proper inspection of the holding tubes

1.11.08.02 Slope and Support (HS=2)

A. Holding Tube

Continuous 2% upwards slope (including elbows)

Permanent support

1.11.08.03 Holding Time Provisions (HS=3)

A. Fitting(s)

Equipped with necessary fitting(s) for checking Holdingtime by salt conductivity test or acceptable alternative

Fittings located at: o the beginning (at the lowest point) of holding

tube and sensing chamber or an alternate fitting(s) upstream of FDD

1.11.08.04 Holding Verification and Records (HS=2)

A. Records

Evidence of holding time by salt conductivity test

Test conducted in both divert and forward flow (except when magnetic flow meter systems are used)

Test results converted to holding time for all products processed

B. Frequency

Upon installation, annually or after any change made tosystem Refer to the written text for the exception for when belts are replaced.

1.11.08.05 Sensing Chamber (HS=3)

A. Requirements

Maintains slope of holding tube

Indicator thermometer sensor and STLR hot milk temperature sensor in close proximity

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Task Inspection Criteria

1.11.08.06 Extended Hold (HS=2)

A. Conditions

Extension connection be close coupled

Extended hold line cleaned and sanitized regularly o records available

Extended hold cycle scheduled at the end of production

day or system rinsed before production run on short

hold cycle

If upstream of FDD: o records available o hold must have a continuous upward slope of

at least 2% o if a two speed FCD used and extended hold

used as legal hold, interwiring must ensure legal hold met (see explanation)

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Flow Diversion Device (FDD)

Task Inspection Criteria

1.11.09.01 General Conditions (HS=2)

A. Flow Diversion Device and Return Lines

Appropriate design

Clean and in good condition o plunger seals o valves and "O" rings o valve stem moves with ease

Clean and unrestricted air supply

Proper control panel o free of any device or switches that may

jeopardize the safety of the pasteurized product

Non-adjustable valve stem length o locking pin present, if necessary

No quick release couplings on air lines if external solenoids

Evaluated upon installation and at least every 6 months thereafter with appropriate records kept

1.11.09.02 Divert Line (HS=2)

A. Requirements

Separate free draining divert line to the CLT o free of any valves o identifiable and cleanable restrictor permitted

to ensure sufficient holding in divert flow

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Task Inspection Criteria

1.11.09.03 Leak Detect Capabilities (HS=2)

A. Single Stem FDD

Properly functioning and unobstructed leak detect ports

B. Dual stem FDD

Separate unrestricted free draining leak detect line to CLT or acceptable receptacle

Sight "glass" on leak detect line o vertical position o clear (no etching or cloudy)

1.11.09.04 Location (HS=2)

A. Requirements

Installed at highest point (end) of holding tube after thesensing chamber

1.11.09.05 Fail Safe Divert Capability (HS=1)

A. Divert Conditions

Valve response time from forward flow to divert not exceed 1 sec

Assumes divert at sub-legal temperature

Assumes divert at loss of electrical power, or air supply

B. Inter-wiring

Interwired with FCD. FCD and flow promoters to operate only when FDD is in safe forward flow or fully diverted position.

C. Records

Available; easily accessible

Tests performed upon installation and at least every 6 months thereafter or as required

o appropriate records kept

Satisfactory follow up on out of specification findings and documentation of actions taken

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Task Inspection Criteria

1.11.09.06 Time Delay Relays (HS=2)

A. Dual Stem FDD 1) General

1 second minimum flush time between the two valve stems (maximum 3 seconds where applicable)

Tests performed upon installation, at least once every 6 months and when seal on the time delay relays are broken and records kept

2) From PRODUCT to INSPECT Mode

FDD immediately diverts and all flow promoters (includes FCD) run down or are valved out.

3) From PRODUCT to CIP Mode

For a system where flow promoters (includes FCD) not operating during CIP o FDD immediately diverts and remains

diverted until flow promoters (includes FCD) have stopped or are valved out

o FDD then controlled by CIP mode

For a system where flow promoters (includes FCD) are operating during CIP o FDD immediately diverts at least 10

minutes o no pressure on regeneration during

divert (e.g. booster pump stopped) o FDD then controlled by CIP mode o refer to Appendix 19 - 10 for prevention

of chemical contamination during mini-wash

B. Meter Based Timing System as FCD

Diverts on high flow or low flow (above high set point or below low set point)

After safe flow established, minimum legal hold time delay before forward flow

Tests performed upon installation, at least once every 6 months, whenever seal on the flow alarm is broken and if changes occur and records are kept

1.11.09.07 Device Sealed (HS=2)

A. Requirements

Device must be sealed appropriately o solenoids, time delay relays and critical

microswitches

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Task Inspection Criteria

1.11.10.01 General Conditions (HS=2)

A. Requirements

Clean and in good condition 1) Mercury Type

Direct reading

No column splitting

Easy to read

Contained in corrosion resistant case 2) Resistance Temperature Devices (RTD)

Utilizing two separate RTD and verifying each other

Meets the design requirements in Appendix 19 -13

1.11.10.02 Location/ Accessibility (HS=2)

A. Requirements

Located in the temperature sensing chamber

Easily accessible

1.11.10.03 Specifications (HS=2)

A. Requirements

Column width magnified to an apparent width of at least 1.6 mm (0.0625")

Scale span of at least 14ºC (25ºF) including pasteurization temperature +/- 3ºC (5ºF)

Graduated in 0.25ºC (0.5ºF) divisions with not more than 4ºC (8ºF) per 25 mm (1") span

Protected against damage at 105ºC (220ºF)

No stem fitting threads exposed to product

At least 76 mm (3") from product contact surface of ferrule to sensing area of bulb

same unit of measure as the recording thermometer

1.11.10.04 Calibration/ Records (HS=1)

A. Calibration

Temperature accuracy

Thermometric response

Frequency of calibration (upon installation and at least once every 6 months)

Tests completed according to required methods and standards

B. Records

Available; easily accessible

Satisfactory follow up on out of specification findings and documentation of actions taken

o product safety assessment required

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Safety Thermal Limit Recorder (STLR)

Task Inspection Criteria

1.11.11.01 General Conditions (HS=3)

A. Requirements

Good mechanical and sanitary condition

Proper design o meets requirements of appropriate

agency or 3A requirements o moisture proof case o electrically operated

Records and frequency of servicing (at least once a year)

Absence of unidentified/unauthorized switches or devices that may jeopardize the safety of product

Covers in place

Flow indicating lights (green for forward and red for divert) operating

Cut in/cut out independent of temperature recording arm movement.

Probe o protected against damage at 105oC

(220oF) o no stem fitting threads exposed to

product o at least 76 mm (3 inches) from product

contact surface of ferrule to sensing area of bulb

1.11.11.02 Diversion Capabilities (HS=2)

A. Set Points

Single set point o At the highest product temperature

Multiple set points o diversion control capability for all

products run (tested upon installation and once every 6 months thereafter)

o set point indicator B. Pasteurized and Unpasteurized Products

Dual temperature divert switch

Pasteurized product processed first

Entire HTST system washed and sanitized prior to pasteurized product processing

1.11.11.03 Cut In/Cut Out (HS=1)

A. Requirements

Legal cut-in/cut-out temperature set

Inaccessible mechanism for altering cut-in/cut-out temperature

B. Operation

Cut-in and cut-out checked and recorded daily at

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Task Inspection Criteria

start up and when new set-point selected (see the left page written text for definition of additional scenarios when cut-in and cut-out is required)

1.11.11.04 Pens (HS=2)

A. Temperature Recording Pen

Easily accessible adjustment screw

Functional (checked daily)

Thickness of pen not > 0.7 mm (0.025")

B. Frequency Pen

Functional (checked daily)

Thickness of pen not > 0.7 mm (0.025")

Tracks with temperature recording pen or follow the same time line

C. Third Pen

Present on dual/multiple diversion STLR includes pasteurized/heat treated milk STLR

Different colour ink

1.11.11.05 Charts (HS=3)

A. Design

Positive drive mechanism equipped with a system to prevent slippage

Proper charts o correspond with chart # displayed on

identification plate of STLR o circular charts graduated for 12 hours

maximum

Appropriate chart scale span, graduations and time scale divisions

o chart span at least 17ºC (30ºF), including diversion set point +/- 7ºC (12ºF)

o graduated in 0.5ºC (1ºF) scale divisions spaced at least 1.6 mm (0.0625”) apart at the diversion temperature +/- 0.5ºC (1ºF), unless ink line is thin enough to distinguish from chart line, then spacing can be 1 mm (0.040 inch) apart

o time scale divisions not more than 15 minutes, spaced at least 6.3 mm (0.25") apart at the diversion temperature +/- 0.5ºC (1ºF)

Same unit of measure as the indication thermometer

Tests performed upon installation and once a year thereafter and appropriate records kept

B. Chart speed

Circular chart to rotate one revolution in not more

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Task Inspection Criteria

than 12 hours

1.11.11.06 Accuracy (HS=2)

A. Records 1) General

Available; easily accessible

Tests performed upon installation, at least annually or as required

Satisfactory follow up on out of specification findings and documentation of actions taken

2) Required Tests and Accuracy

Temperature accuracy o shall be accurate within +/- 0.5ºC (1ºF)

at divert temperature set point +/- 3ºC (5ºF)

Time accuracy o recorded time shall not exceed true

elapsed time

Recording thermometer check against indicating thermometer o recording thermometer not higher than

indicating thermometer

Thermometric response o shall not exceed 5 seconds

1.11.11.07 Sealed (HS=2)

A. Requirements

Must be sealed o including electrical contact point type

1.11.11.08 Programmable Logic Controllers and Computers (HS=1)

A. Installation

Micro-processor controlled outputs o shall not circumvent any operation of Public

Health Controls (e.g. booster pump, FCD, FDD etc.) when FDD mode switch is in process position

o maybe implemented to operate Public Health Controls (e.g. booster pump, FCD, FDD, etc) when FDD mode switch is at CIP position after the 10 minute time delay.

o maybe implemented to operate other components (e.g. regenerator by-pass valves, pasteurized product regenerator back pressure valves, hot water set controls, recycle valves, CLT controls, cold milk temperature controls, MBTS product flow controls, heating and cooling medium controls etc.) under all operating conditions

B. Testing

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Task Inspection Criteria

Test procedures used to confirm proper operation of all required public health controls shall be available. An example of test procedure is outlined in Appendix 19 - 5

C. Documentation

Complete and accurate documentation of inter-connecting wiring, air piping and applicable programs must be available

Microprocessor logic defined by program listings and descriptive narrative text

D. Access sealed (All)

Microprocessor access ports, modem ports and input/output terminals must be sealed to prevent unauthorized changes or tampering.

The control panel holding the solenoids for the divert valves must be sealed

A reliable third party may connect remotely to the PLC to repair something in the system providing it is not a permanent connection and there is documentation showing date of entry, purpose of re-programming, who did it, who verified repair, seal breakage, re-sealing and new seal number

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Pressure Differential Controllers (PDC) /Gauges

Task Inspection Criteria

1.11.12.01 General Conditions (HS=3)

A. Pressure Differential Controllers

Sensors clean and in good mechanical condition

Proper design o easy dismantling of sensors for inspection o indicating section housed in appropriate

control panel o it is considered acceptable to use a legal

PLC to control the pressure differential.

B. Gauges

Clean and in good condition

Accurate and calibrated

Only applicable between raw and pasteurized product when no booster pump used

1.11.12.02 Location (HS=2)

A. Regenerator - HTST System With Booster Pump

Requires PDC

Interwired with booster pump

Raw product sensor between the booster pump and the raw product inlet to the regenerator

Pasteurized product sensor at, or downstream from, pasteurized product outlet of regenerator

Split regenerator o each section is monitored and controlled by

its own pressure differential controller B. Cooling

Sensors at the cooled milk outlet and cooling fluid inlet or other acceptable location

1.11.12.03 Accuracy (HS=2)

A. Pressure Differential Controller

Procedures established to regularly test (upon installation and at least once every 6 months)

B. Gauges

Checked for accuracy at least every 6 months

1.11.12.04 Sealed (HS=2)

A. Pressure Differential Controller

Must be sealed

1.11.12.05 Records (HS=2)

A. Accuracy

Available; easily accessible

Satisfactory follow up on out of specification findings and documentation of action taken

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Recording Thermometer

Task Inspection Criteria

1.11.13.01 General Conditions (HS=3)

A. Requirements

Clean and in good condition

Protected against damage at 105ºC (220ºF)

Moisture proof

Positive drive mechanism equipped with a system to prevent slippage of chart

Equipped to produce a continuous permanent record of all pertinent information (i.e. time of day and temperature)

Thermometer scale graduated in units not greater than 1ºC (2ºF)

Accuracy +/- 0.5ºC (1ºF)

Records and frequency of servicing (at least once a year)

Pasteurized Product Discharge

Task Inspection Criteria

1.11.14.01 Elevation (HS=2)

A. Pasteurized Product Discharge Piping

At least 30 cm (12") above the highest potential raw product elevation

1.11.14.02 Vacuum Break (HS=2)

A. At end of discharge piping at highest point, a break to atmosphere

No restrictions (e.g. valves, pumps etc.)

1.11.14.03 Vacuum Breaker (HS=2)

A. Equipment

Clean and in good condition

Functions in operation o plunger or core moves freely

Installed in a manner so that the air intake is not a source of contamination (See text for further explanation).

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Homogenizer

Task Inspection Criteria

1.11.15.01 General Conditions (HS=3)

A. General Inspection Criteria for Dairy Plant Equipment

B. Specific Areas of Interest

Stainless steel product contact surfaces

Clean and in good condition o filters o homogenizer valves o pistons o seat valves o pressure gauges

Appropriate gauges

1.11.15.02 Recirculation Line (HS=2)

A. Homogenizer Downstream of FCD; Greater Capacity

Recirculation line o unrestricted o between inlet and outlet of homogenizer o no shut-off valve o check-valve allowed o diameter greater or equal to supply

1.11.15.03 Relief Line (HS=3)

A. Homogenizer Downstream of FCD; Less Capacity

Installed upstream of FDD

Sanitary pressure relief line o runs from inlet side of homogenizer back to

CLT o have a pressure relief valve

1.11.15.04 Interwiring (HS=2)

A. Homogenizer of Lesser Capacity than FCD:

Operates only when FCD engaged

Equipped with a time delay relay of 1 sec

Tests performed upon installation, at least once every 6 months or when micro-switch re-set or replaced and records kept

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Separator/Clarifier

Task Inspection Criteria

1.11.16.01 General Conditions (HS=3)

A. General Inspection Criteria for Dairy Plant Equipment

B. Specific Areas of Interest

Clean and in good condition o bowl o discs o disc covers

1.11.16.02 Location (HS=2)

A. Options

Upstream of FDD o upstream of any FCD

Downstream of FDD

1.11.16.03 Non-Flow Promoting (HS=2)

A. Conditions

Non-flow promoting device whenever FCD is not operating

o could be achieved by fail safe valving out o (by-passing) the separator o normally closed valve located downstream of

product o Test performed upon installation, at least once

every 6 months and when micro-switch is re-set or replaced and records kept

1.11.16.04 Vacuum Break (HS=2)

A. Separator/Clarifier Downstream from FDD

Vacuum breaker at the inlet to the separator o no restrictions (e.g. valves, pumps etc.)

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Flavour Adjusting Equipment (FAE)

Task Inspection Criteria

1.11.17.01 General Conditions(HS=3)

A. General Inspection Criteria for Dairy Plant Equipment

B. Specific Areas of Interest

Installed and operated in conjunction with HTST provided FAE will not

o interfere with the detection of, or stoppage of, the forward flow of unpasteurized milk

o influence the proper pressure relationship within the regenerator

o reduce the holding time below required minimum

o contaminate and adulterate the product

1.11.17.02 Properly Valved Out (HS=2)

A. Culinary Steam Used Downstream from the FDD Steam added only when FDD is in forward flow automatic steam control valve, or automatic solenoid shut off valve

B. Water Feed Line Used

No back-up and overflow of water and/or condensate from vacuum condenser into product vacuum chamber

o automatic safety shut off valve and o high level sensing device in condenser

C. FAE Downstream from FDD

No back-up and overflow of water and/or condensate from vacuum condenser into product vacuum chamber

No negative pressure

A normally closed shut-of valve o downstream from vacuum breaker

Both installed in line between FDD and inlet to vacuum chamber

o directly downstream from FDD

No lowering of pasteurized milk level in the regenerator during divert or shut down

Automatic check valve or positive type shut-off valve and

Vacuum breaker o downstream from valve

Both installed in line between outlet from downstream vacuum chamber and pasteurized milk inlet to regenerator

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Task Inspection Criteria

1.11.17.03 Steam Ratio Control (HS=3)

A. Culinary Steam Introduced into Product 1) Automatic Ratio Controller

Sensorso outlet of FDD (prior to steam addition) o in vacuum chamber or its exit

Automatically adjusts operating vacuum in vacuum chamber

2) Any other system which precludes adulteration

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Stuffing Pump/Flow Promoting Devices

Task Inspection Criteria

1.11.18.01 General Conditions (HS=3)

A. General Inspection Criteria for Dairy Plant Equipment

B. Specific Areas of Interest

Clean and in good condition o impellers o back plates

Painted exterior o clean o free of flaking paint and rust

1.11.18.02 Proper Installation/ Operation (HS=2)

A. Requirements

No interference with the draining of the system when the system shuts down

Interwired so that the pump or devices shut(s) off whensystem shuts down or when FDD causes the FCD to shut down

o Test performed upon installation, at least once every 6 months and when micro-switch is re-set or replaced and records kept

Not influence the proper pressure relationship within the regeneration section

Not reduce the holding time below the required minimum

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Supplementary Milk Solids/Milk Fat Injection System (In-Line Standardization)

Task Inspection Criteria

1.11.19.01 General Conditions (HS=3)

A. General Inspection Criteria for Dairy Plant Equipment

B. Specific Areas of Interest

Clean and in good condition

Stainless steel product contact surfaces

Positive displacement pump or centrifugal pump with a MBTS

1.11.19.02 Proper Installation/Operation (HS=2)

A. Requirements

Pasteurization holding time is not reduced below the required minimum.

Composition (fat, solids) cheesemilk does not affect the minimum pasteurization time and temperature requirement as per 1.11.02.02

Proper pressure differential maintained within the regeneration section.

System freely drains should the system shut down.

Not interfere with the detection, or stoppage of forward flow of unpasteurized milk.

B. Injection Location

Directly into CLT, or

Between CLT and FCD o injection point between outlet of last raw

regeneration section and FCD o proper check valve installed upstream of

injection point o flow rate not greater than FCD o proper design of injection valve: fail safe, spring-

to-close, air-to-open, block and bleed design with full port open to atmosphere between the HTST isolation seat and pump when solids/milk fat not being injected

C. Interwired or equivalent system to not operate when:

FCD is not in operation

FDD is in divert mode or the system is in recycle mode

FDD is in inspect mode

If the system is controlled by computers or programmable logic controllers they must meet the requirements of 1.11.11.08.

Tests performed upon installation, at least once every 6 months and when micro-switch is re-set or replaced and records kept