Originally Posted by rockytoptim
So I have been brewed a hopslam clone twice now (both 10 gal batches) and always have missed my target gravity into the BK. I have brewed about 20 al batches and have never had a problem hitting my target gravity into the BK. I have a 20 gal boilermaker with blichmann false bottom. I mill my own grain but after the first batch I double check my gap (.036") and made sure it was correct and it was. I use 1.5 qt/lb for my mash as that seems to work best for my false bottom. If I go lower I tend to stick my sparge and My I batch sparge as well. Both batches the target into the BK was 1.084 and I hit 1.063. Now I did add DME to bring it back up but it bothers me that I cant hit the target OG into the BK. I am just wondering how some of you handle the big beers grain bill because seems like part of the issue is that will the big grain bill that there isn't much sparge water left to rinse all the grain. For the grain bill below I sparge with 5.5 gal of water. I have read that for big beers like this you need to use more sparge water than needed and boil down or you could split grainbill in half and use your runnings from the first mash as your water for the 2nd half of the grain bill mash. Just want to see how you guys brew these big beers. Below is the grain bill I used. Thanks in advance. 29.0 lb Pale Malt (2 Row) US (2.0 SRM) Grain 70.73 % 6.00 lb Vienna Malt (3.5 SRM) Grain 14.63 % 2.00 lb Caramel/Crystal Malt - 20L (20.0 SRM) Grain 4.88 % 1.00 lb Cara-Pils/Dextrine (2.0 SRM) Grain 2.44 % 1.00 lb Honey Malt (25.0 SRM) Grain 2.44 %
DME is common practice to get hit your gravity for big beers unless you want to do a longer boil to hit your gravity. Heck, a couple of professional breweries admit to doing using DME for big beers on Jamil's Can You Brew It podcast, Avery is one that I remember off the top of my head. Boiling down is fine though, IMO. Simple sugar is also an option depending on the style. You really need to try lowering your water to grist ratio close to 1qt/lb if you want to get a better yield with a large grainbill.