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Decoction
LO—To know how, when and if to
perform a decoction mash
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No.
Do you need to do a decoction mash?
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Yes.
Does decoction even make a difference?
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Colour difference (three decoctions + sugar)
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Effect on malt
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Probably?
Does decoction even make a difference (that you can’t get in an easier way)?
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Process
● Mash in at ~3l/kg
● Remove around a third of the mash
into large pan (~20l)
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Process
● Mash in at ~3l/kg
● Remove around a third of the mash
into large pan (~20l)
● Bring to a vigorous boil for ~10min
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Thick portion vs Thin Portion
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Benefits and difficulties
● Flavour, body and mouthfeel
● Colour and clarity
● Head retention
● Efficiency
● Looooong
● Mess
● Hitting rest temperatures
● Scorching
● Extra (and/or poorly adapted) equipment
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Miscellaneous tricks
● Heat slowly at first, gradually turn up the heat
● Pause at ~65° during first decoction
● Don’t rush
● One long decoction?
● All-in-one brewing vessel single decoction trick
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All in One Single Decoction
62°
70°
78°
100°
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