I recently bought some grain for an AG batch that I wanted to do, and as I thought I would be brewing it the next day, I had it crushed at the store. Due to some unforeseen events that arose, I haven’t been able to make that session happen, and my grains have been sitting at my house for a little over a month.
Will this still be good to use, or should I toss it and get a new batch?
I just recently brewed an IPA with 3 week old crushed grain and the wort tasted fine. I chewed on a pinch or two of the grain prior to brewing and it didn’t taste stale or anything. You should be OK.
I kept about 10# of crushed malted wheat in the freezer, sealed in freezer bags, for about 6 months. I blended a few # of it in 3 different beers to get rid of it, and could not detect any stale or off flavors from the old wheat. I wouldn’t suggest doing that as standard practice, but as long as the grain tastes OK then it should be OK to use.