I am fairly new to AG, this was my 6th batch and was the Oatmeal Stout NB kit. The target mash temp was 153, but I hit 155. Batch sparge with first runoff 3.3g and 2nd runoff 2.9g. Mashout temp was 169 (10min). Runoff was about 10 minutes for both. Below are my calcs with the max ppg from Table 27 in Palmer’s book. Hydrometer accurate to within 1 point at different temps. Volume to kettle=6.2 gallons SG=1.050 (volume measurement accurate to within a pint or so).
Grain max ppg
6.5# English Marris Otter 37 x6.5/6.2 = 38.8
1# Flaked Oats 32 x1/6.2 = 5.2
0.5# Eng Roasted Barley 25 x0.5/6.2 = 2.0
0.5# Eng Choc Malt 28 x0.5/6.2 = 2.3
0.5# Eng Dark Crystal 33 x0.5/6.2 = 2.7
Maximun points = 51
Efficiency = 50/51 x 100 = 98%
Did I do the calculation correctly
I didn’t think to weigh the grain as it was ordered pre-crushed. Am I correct in thinking that they must have supplied more grain?
Or was my mash temp simply too high and expect this beer not to be good (time will tell).
My grain mill is on order and this was my last kit brew.