kegging and draft systems. kegging pros: time ease of cleaning carbonation precision no sediment –...
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Kegging and Draft Systems
Kegging Pros:
• Time• Ease of cleaning• Carbonation precision• No sediment – good for comps• Potentially lower long term costs• Easy 02 free transfers• Stainless - no light, no broken
glass, store with sanitizer• Pour any size – growlers, pint,
etc.• Lager and serve without transf.
Why Keg beer?Bottling Pros:
• Portability• Oxygen absorption by yeast referm• No kegerator maintenance• Good for small test batches• Bottles ready for competition• Easy to share• Less space required• Low cost to get started• Good for long term storage
Keg assembly and cleaning
Parts:• Keg• Lid • Poppet valve• Liquid (out) post• Gas (in) post• Dip tubes• Gaskets/o-rings• Quick disconnects
Cleaning:• PBW• Brushes• Gasket
replacement• Keg lube• Keg washer
CO2 Assembly
• Tank• Regulator/gauge• Manifold• Hose clamps• Check for leaks!
Sanitizing
• Store with distilled/StarSan or mix fresh solution.
• Close and pressurize keg. Run liquid through liquid out.
• Shake, sit upside down, shake again.• Drain dip tube and empty upside down with
lid open.• Spray posts with sanitizer.
Racking (standard)• Limit oxygen exposure• Flood keg with CO2 through liquid post, bleed
through poppet.• Open keg lid, siphon beer.– Avoid sediment, especially hops. Will clog dip tube and
liquid post/QD.
• Seat the lid: set to 10-12 PSI while pulling up on the bail. Once the lid is sealed and held up by the gas, set the bail of the lid.
• Purge 2-3 times. Check for leaks.
Racking (O2 free)• Equipment: carboy cap, stainless dip tube, sealed bung• Sanitize keg, seat the lid, flood with CO2.• If cold crashing, use a sealed bung. Fill plastic bag with
CO2, cover carboy mouth, slowly remove bung. • Attach carboy cap with stainless dip tube.
– No hop residue critical – optional screen filter
• Connect line to liquid out post (sanitize posts!).• Connect gas. Be careful with pressure no more than 4-
5 psi.• Open poppet (monitor volume closely towards end).• Purge 2-3 times. Check for leaks.
Carbonating techniques
• How much CO2 do I need?• What are volumes of CO2?
• The temperature-pressure-time interplay.
Carbonating Techniques
1. Set it and forget it2. Set and shake3. Crank4. Crank and shake– Leave 24 pressure to equalize– High risk of over carbonating
• De-carbonating - turn off CO2, pull the relief valve, test, repeat
• CO2 gauge
Draft Line Calculations
• Line length calculations– Longer line = more resistance = less pressure at tap– Greater elevation change = greater resistance• Picnic tap example
– L = (keg_pressure – 1 psi) / Resistance– 3/16″ ID vinyl tubing = 3 psi/ft– beer loses 0.5 psi/foot of elevation gain– L = (keg_pressure – 1 – (Ht_feet/2)) / Resistance
More Draft Info• Cold lines = less foam• How to poor: full open, full close• Cleaning and replacing lines
• Keg jumping
• Filling growlers/bottles – silicone tubing, growler filler, bottling gun, CPBF
