I brewed an extract batch yesterday (my fourth) for a Porter. This recipe used a pretty large amount of steeping grains for an extract batch (4.375 lb)
I steeped the grains for about an hour in 155-160F in two gallons of water. Then I rinsed them through a colander with another gallon of hot water.
I've been using BrewersFriend to do my calculations. For extract batches it uses an efficiency applied to the steeping grains only. It recommends using 30%. I though I might do a little better but looks like I might have done a lot better. I was expecting an OG of 1.075 -1.080 I got ~1.090. From brewers friend here are a few values of efficiency and OG:
30% - 1.072
50% - 1.078
70% - 1.083
90% - 1.089
Anybody seen this before? This effect probably shows up more on this batch because I have so much steeping grain. My last batch only had 1 lb and I hit OG dead on.
This batch used:
FERMENTABLES:
6.6 lb - Liquid Malt Extract - Light (50.9%)
1 lb - Dry Malt Extract - Light - (late addition) (7.7%)
1 lb - Dry Malt Extract - Light (7.7%)
STEEPING GRAINS:
1.5 lb - American - Munich - Dark 20L (11.6%)
0.5 lb - American - Caramel / Crystal 80L (3.9%)
0.5 lb - American - Caramel / Crystal 120L (3.9%)
0.625 lb - American - Chocolate (4.8%)
0.25 lb - American - Wheat (1.9%)
0.5 lb - Flaked Oats (3.9%)
0.5 lb - American - Pale 2-Row (3.9%)
I steeped the grains for about an hour in 155-160F in two gallons of water. Then I rinsed them through a colander with another gallon of hot water.
I've been using BrewersFriend to do my calculations. For extract batches it uses an efficiency applied to the steeping grains only. It recommends using 30%. I though I might do a little better but looks like I might have done a lot better. I was expecting an OG of 1.075 -1.080 I got ~1.090. From brewers friend here are a few values of efficiency and OG:
30% - 1.072
50% - 1.078
70% - 1.083
90% - 1.089
Anybody seen this before? This effect probably shows up more on this batch because I have so much steeping grain. My last batch only had 1 lb and I hit OG dead on.
This batch used:
FERMENTABLES:
6.6 lb - Liquid Malt Extract - Light (50.9%)
1 lb - Dry Malt Extract - Light - (late addition) (7.7%)
1 lb - Dry Malt Extract - Light (7.7%)
STEEPING GRAINS:
1.5 lb - American - Munich - Dark 20L (11.6%)
0.5 lb - American - Caramel / Crystal 80L (3.9%)
0.5 lb - American - Caramel / Crystal 120L (3.9%)
0.625 lb - American - Chocolate (4.8%)
0.25 lb - American - Wheat (1.9%)
0.5 lb - Flaked Oats (3.9%)
0.5 lb - American - Pale 2-Row (3.9%)