Strike Temperature Calculation
11 years 6 months ago #160
by Gash
Strike Temperature Calculation was created by Gash
Most people use web based water strike calculators to get their strike temperatures, but if you have ever wondered what the formula is behind these calculations read on!
"Due to the high enzyme content of the malt on the market, the most critical time period during an infusion mash (as most of us use) is the first 5 minutes. This is when the enzymes are most active - producing a lot of reaction products (yes, sugars!!) and determining the fermentability of the wort. A mistake in the “strike” temperature of the mash liquor can result (most often) in a beer with a higher than desired final gravity. For repeatable results, it is important to achieve your desired temperature from the start of the mash."
-Alex Troncoso
Strike Temperature =
Example:
Required Mash Temperature: 67c
5kg of Malt @ 15c
13L of water
Strike Temperature = 75c
"Due to the high enzyme content of the malt on the market, the most critical time period during an infusion mash (as most of us use) is the first 5 minutes. This is when the enzymes are most active - producing a lot of reaction products (yes, sugars!!) and determining the fermentability of the wort. A mistake in the “strike” temperature of the mash liquor can result (most often) in a beer with a higher than desired final gravity. For repeatable results, it is important to achieve your desired temperature from the start of the mash."
-Alex Troncoso
Strike Temperature =
mash temperature x (litres water + (0.4 x kg malt)) – (0.4 x kg malt x malt temperature)
litres water
litres water
Example:
Required Mash Temperature: 67c
5kg of Malt @ 15c
13L of water
67 x (13 + (0.4 x 5)) - (0.4 x 5 x 15)
13
= 67 X (13 + 2) - (30)
13
= 67 x 15 - 30
13
= 1005 - 30
13
= 975
13
= 975/13
= 75c
13
= 67 X (13 + 2) - (30)
13
= 67 x 15 - 30
13
= 1005 - 30
13
= 975
13
= 975/13
= 75c
Strike Temperature = 75c
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