I have brewed 4 all grain batches so far and everyone seems to have a very low preboil gravity and different efficiencies. i typically mash for 60 min at 152-154 and i do a single sparge sometimes with a mash out. My sparge temperatures have been lower than i want them (around 162-165). Here is an example of my batch last night. preboil gravity:1.034 target:1.045
original gravity: 1.048 target: 1.053
It seems to me that all my preboil gravities are very low and the original gravity comes out low but a lot closer. My efficiency has also been all over the place, ranging from 58-76%. I am basically trying to get a efficiency so I can account for that when buying grains, but every batch seems to be a lot different. I take my preboil hydrometer readings at around 150 degrees and then correct them with beer alchemy. The one area I have been fairly consistent is with my volumes of wort collected. What do you guys make of this? Thanks!
original gravity: 1.048 target: 1.053
It seems to me that all my preboil gravities are very low and the original gravity comes out low but a lot closer. My efficiency has also been all over the place, ranging from 58-76%. I am basically trying to get a efficiency so I can account for that when buying grains, but every batch seems to be a lot different. I take my preboil hydrometer readings at around 150 degrees and then correct them with beer alchemy. The one area I have been fairly consistent is with my volumes of wort collected. What do you guys make of this? Thanks!