If you're actual numbers are not the same as the assumed values in the formula you'll never get an accurate result. That is a very specific calculator that factors allot of variables into the equation. 6 (just to see) it just has me add another 5 gal of sparge water to compensate (saying I now need about 15 gal of water total to start) I was using a calculator by morebeer and grain absorption was set at. TLDR: I can’t get mash and sparge numbers to equal projected pre boil volume. After reading this thread I’ve seen people with similar grain bills using 4gal to mash and another 4 to sparge and coming up with 6.5 gal pre boil and I’m just not sure what I’m doing wrong. Just very frustrating that I can’t get the numbers dialed in. Ideally I would have liked to have about 6.75 total pre boil so I would be able to get closer to 6 gal in the fermemter but it’s not the end of the world. But after adding the above stated amount I am still only ending up with 6.5 gal collected in the mash and boil (pre boil). 25 gal to trub loss and 1 gal loss from the fermenter to the keg) which is obviously more then I would need to collect. The calculator says I should be mashing with 4 gal and sparging with 6gal to get a total volume of 7.5 gal pre boil (assuming. I am trying to get a total of 6gal into the fermentor. The one issue that I’ve been noticing is that for the life of me I can’t collect the correct amount of wort using any calculator that I’ve found online.Ĭurrently brewing a IPA with 13lbs of grain. Hi everyone! I’ve been using the Mash and Boil for a few batches now and now that I’m trying to “perfect” my beers a little bit more I’ve been starting to pay more attention to mash/spare volume and pre and post boil gravitates in a effort to make more consistent beers. Primary for 3 weeks, cold crash and rack to keg. I pitch the yeast pop the lock on it and set it in a walmart bucket half filled with water and I float 3-4 frozen water bottles to keep the temp down in high 60's. since i'm in florida that will get me down to 70 degrees in about 30 minutes. I use a recirc pump in my old 10 gal pot to push ice water through the chiller. After the 60 minute boil I use an immersion chiller to get the temp down. Since I lose a little water with the adsorption of the grains, I add a bit of semi hot water through the bag to rinse the grains. Its designed with little bolts sticking out to rest on the rim. Then I lift the bag with the collander and set it above the m&b to drain into the kettle while the temp is coming up to boiling.
It drops a bit and the heater kicks in once or twice over the hour, I'm not worried about it. then I wrap a sleeping bag over the whole thing and leave it for an hour. when it reaches temp I pour my grains into a wilserbrewer bag and stir to remove clumps.
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