Hello, I'm getting ready to start doing AG, and I just picked up the Coleman Xtreme 52 from Kmart because it was on sell for $32.99 and everyone says to start out with this cooler. I'm only going to do 5 gallon batches, and I know that some well say keep it because you'll have room to move to 10 gallon batches, but I have no interest in doing 10 gallon batches. I'd rather have more different types of beer than more of the same type of beer.
I just got done reading the "Lauter Tun Design For Batch Sparging" from John Palmer's "How To Brew", and I'm concerned that the Coleman xtreme 52 is to big for 5 gallons. Using his equation for estimating grain bed depth it comes out to 3.15" deep, which doesn't meet the his recommended minimum grain bed depth of 4". So is the Coleman Xtreme 52 to big for 5 gallon batches?
I just got done reading the "Lauter Tun Design For Batch Sparging" from John Palmer's "How To Brew", and I'm concerned that the Coleman xtreme 52 is to big for 5 gallons. Using his equation for estimating grain bed depth it comes out to 3.15" deep, which doesn't meet the his recommended minimum grain bed depth of 4". So is the Coleman Xtreme 52 to big for 5 gallon batches?
Equation:
1: 5(batch size) x 50(average OG) / 30(typical yield in ppg) = 8.3lbs for average gain bill
2: 8.3 x 42(fluid oz per pound) = 350 fl. oz volume of the grain bed
3. 350 x 1.8(convert to cubic inches) = 630 cu. in.
4. 630 / (9.5 x 21 floor area of the tun) = 3.15" deep