New answers tagged boil
Despite the fancy scientific answers, the correct answer is you brew a few times and measure how much you start and end with.
What you are actually looking for here is not the amount of evaporation you will be working with it is the amount of vaporization. This is a technical but important distinction the overwhelming amount of water loss is from the boil not from evaporation. Now this can be calculated but unfortunately I won’t be able to give you a magic bullet for this there are ...
I've not seen a calculator that's reliable. Could be calculated but too many variables: surface area, altitude, actual wort temperature etc. It's much easier to just do a boil test to establish your brewhouse boil off rate. For example my brewhouse boil off rate with a keggle is 1 gallon an hour at modest rolling boil. So for 90 min boil, 12 gallon batch I ...
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