My local homebrew store is 2 blocks from where I work, yet 25 minute (drive) from my house. I like to brew on the weekend, and in the past have just driven to the shop to get the grains fresh the morning of brew day. It delays the start of my day because I have to wait until the shop opens, and the commute time.
I have wanted to get the grains a day or two prior to my brew day on my way home from work, so I could get an early start in the weekend.
I have them crush the grains for me.
My question is, How long do I have from crushing the grain, which is kept in a brown paper bag, to mash, without it affecting my beer?
Are there any pointers/insight with this.
Thanks for all feedback!