31 lines
980 B
Markdown
31 lines
980 B
Markdown
# Brewery calculations
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## SPND - Spundungsdruck
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This is a **solver-program** to calculate the carbonization pressure according
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to this formula:
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```
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2617.25
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(- 10.73797) + ----------
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t + 273.15
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c(p, t) := (p + 1.013) %e 10
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```
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c: CO₂ concentration in g/l
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p: Carbonization gauge pressure in bar
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ϑ: Temperature in °C
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https://elfring.ms/blog/rpn-karbonisierungsrechner
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## GFWtr - Grainfather Water Calculator
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Asks for the batchvolume in l (Aussschlahmenge / Asslg) and grainbill in kg (Malz) and
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calculates the amount of mash- and sparge-water for grain bills > 4,5 kg according to
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this formula from the Grainfather manual:
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```
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MashWater = GB * 2.7 + 3.5
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SpargeWater = (BV + WL) - MashWater + (GB * 0.8)
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```
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GB: Grainbill in kg
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BV: Batchvolume in l
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WL: Waterloss in boil & trub in l (defaults to 5)
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Adjust waterloss in line 10
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