![]() ![]() That being said, if that gap is sufficiently large, I'll second the earlier suggestion of adding a piece of split tubing around the false bottom, to act like an o-ring. ![]() You will always see some grain come through either this gap, or through the perforated stainless it just happens. Yes, you are probably getting some gain through the perimeter gap of the false bottom. I've found this to be the most likely cause when I have problems. Having used a false bottom and stainless mash tun before I converted a cooler, I'll chime in.Ĭheck your gap on the grain mill. So all that water underneath the false bottom will be used as sparge during the vorlauf as this will be what comes out first before the wort does. My thought would be to put 2.5 gallons as my undrainable in beer smith - as this would give me the correct volume of strike water above the false bottom to achieve my desired mash thickness (most cases 1.25 qt/lb), BUT since beer smith does not know that only 1 gallon of what I listed is truly "Undrainable" I just subtract the 1.5 gallons that is useable out of my sparge water calculation as this will end up as my sparge anyway since I usually do 3 rounds of vorlauf at about 2 to 3 quarts per vorlauf before I let the wort run into the kettle. So my question is how do I account for this during mashing? This 1.5 gallon will not come in contact with the mash. This volume I don't have any questions with, but I am concerned with the other 1.5 gallons that is trapped underneath the mash itself. But for now lets assume I have 1 gallon of undrain able liquid (my dead space). I will definitely do that as I plan to pick up a 3 to 4 foot high temp silicone tube to attach to my ball valve a day before brew day.
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