Aloha_Brew
Well-Known Member
Okay, so this is my third all-grain batch i just completed up to fermentation. All three were done very much the same. Boiled water beforehand or filtered it before letting it cool to a temp around 150 for the mash with grain in the bed. This recent batch I kept around 152.
Here's the grain bill:
7 lbs Pilsener
4.5 lbs 2-row
2 lbs Munich
1 lbs Wheat
.5 lbs Peated
.25 lbs Carafa III
I used a little less than 9 gallons total for mash and sparge, adding some extra water during the 90 minute mash to keep temps up. My total yield was about 7 gallons.
After boil I yielded about 5.5-6 gallons. Oh, I also added 1oz Northern Brewer at 90 min, and again at 30 min, with 2oz Fuggles at 5 min. And Irish Moss and nutrients were added also at 5 min.
With my 2 previous batches I met expected OG; one being as high as .08. However, this time my OG was expected at .079 but was actually .05. Now, these homebrew calculators are alot smarter than me and the only way I can make myself get .05 after boil is if my yield was 8 gallons...which my 7.5 gallon pot just can't do with more than that even before boil.
Any ideas why my OG is so low? I can only figure I should have measured OG before boil to make sure I got enough concentrated yield from the mash. Otherwise, the only other possibility is I didn't boil long enough. But why just this batch???
Here's the grain bill:
7 lbs Pilsener
4.5 lbs 2-row
2 lbs Munich
1 lbs Wheat
.5 lbs Peated
.25 lbs Carafa III
I used a little less than 9 gallons total for mash and sparge, adding some extra water during the 90 minute mash to keep temps up. My total yield was about 7 gallons.
After boil I yielded about 5.5-6 gallons. Oh, I also added 1oz Northern Brewer at 90 min, and again at 30 min, with 2oz Fuggles at 5 min. And Irish Moss and nutrients were added also at 5 min.
With my 2 previous batches I met expected OG; one being as high as .08. However, this time my OG was expected at .079 but was actually .05. Now, these homebrew calculators are alot smarter than me and the only way I can make myself get .05 after boil is if my yield was 8 gallons...which my 7.5 gallon pot just can't do with more than that even before boil.
Any ideas why my OG is so low? I can only figure I should have measured OG before boil to make sure I got enough concentrated yield from the mash. Otherwise, the only other possibility is I didn't boil long enough. But why just this batch???