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Last active August 29, 2015 13:56
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BIAB Technique

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BIAB!

Prepare Equipment

  • Dry Area: BIAB bag, 1L & 1/2L Pyrex, malt/hop glass, electronic scales, cake rack
  • Wet Area: Fermentor with lid & airlock. Wort chiller, refractometer, metal sieve, towels, brew sheet
  • Flame Area: Stockpot, lid, ruler, mash paddle, digital thermometer
  • Ingredients: Malt, Hops, Yeast

Pre-Mash

  • Add Water to kettle
  • Flame on
  • Raise temperature to 2 degress above strike temp
  • Flame off
  • Add Cake rack
  • Add BIAB bag

Mash

  • Pour grain from 30cm above pot (doughing in). Stir to avoid clumps
  • Check time, this is mash starting time
  • Check temp, Add lid if within 2C. Remove lid if high, other put lid on. If too low heat and move.
  • Check temp at 5, 10, 20, 40, 70
  • Finished afer 90 minutes
  • (Optional) Mash Out
  • Flame on
  • Pull the bag: Raise, twist and squeeze. Use saucepan lids to squeeze the bag.
  • Drop bag in bin bag, dispose
  • Remove cake rack

Write down mistakes at this point. Get hops and bits ready with notes for when they are added.

The Boil

  • Flame on to 100C (sweet liquor becomes wort at 100c)
  • Flame out at 100C
  • Check Gravity and volume
  • Flame on
  • 30 minutes making sure the temp is steady. Empty grains and clean bag
  • 30 minutes in: Add bittering hops (can boilover, watch out)
  • Spray immersion chiller with star san, add to pot, add lid, add heat to keep it at 100C. Add extra time for drop in temp.
  • 20 minutes left: Add flavour hops, finings,
  • 0 minutes: Add aroma hops
  • Flame out

Yeast Starter

Around the same time as the wort chiller going in. Make a yeast starter if required

Steralize

Fill Fermenator with Sterilizer. Put in everything that will touch beer after it has cooled

  • Beer thief
  • Airlock
  • Sieve
  • BIAB bag

Wash out with high temp water

Chilling

  • Turn on wort chiller
  • Stir to drop temp faster
  • Stop the chill at 20C

Pitching

  • Prepare sieve and BIAB above FV
  • Pour kettle into
  • If not enough in FV, add cold water
  • Measure the gravity and volume
  • Air the wort for 5 minutes using paddle
  • Pitch the yeast
  • Seal container
  • Move to temp controlled area
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