![]() I like to have at least 2-3 gallons (~8-12 liters) of spare space. This is the figure used by most of the software, and it has always been very accurate for my purposes.īoilover varies significantly by the shape of the vessel and the nature of the heat source. I have always used 0.1 gallons of absorption per 1 pound of grain, or roughly. ![]() Mash Tun: (Water to Grist Ratio) * (Largest Grist Bill) + (Grain Volume) * (Largest Grist Bill) mash volume = pre-boil + absorption + grain volume = 28.5 + 8.3 + 3.26 = 40 lĮdit: added volume taken by grains No Spargeīoil Kettle: (Batch Size + 4% expansion) + (Boiloff) + (Extra Space for Boilover).That would give me nicely stackable pots of a very manageable size, where not for the issues above. ![]() From the mash we get 18l - 8.3l = 9.7l for first runnings.In the Boil kettle we will have at least 25l + 3.3 = 28.5l of pre-boil volume.How much is the minimum extra space to avoid boilovers? HTL Evaporation = 25l * 9%/h * 1.5h = 3.37l (this should really be from pre-boil volume, but don't know how to get that).Post boil volume 25l (20l for fermentor + 5l deadspace).Mash tun minimum size: 23.3 l Boil Kettle I want to get 20l batches (on the primary fermentor) of regular strength beers ( OG First issue, how do I estimate the volume taken by the grains?Įdit: Beersmith estimates it to be 0.652 l/kg, so: Will use 3 regular pots (mash tun, hot liquor, boil kettle), preferably storing then inside each other.I'm looking at BIAB also, but want to have the traditional 3 vessels setup.All Grain brewing, extracts are not available around here.Brewing in an kitchenette with limited storage space.
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