I ordered over a week ago and it is on it's way now (finally). I wanted it for this weekend, but Fed-ex says it wont be here until Wednesday of next week! I wanted to brew this weekend and now, If it doesnt come until later in the day Wednesday, I can't brew until weeks later. So... What can I do with the grain that has already been crushed to keep it as fresh as possible until I brew? I worry about freezing ( I heard something about Ice Crystals). I will try to keep it as air tight as possible, but are there any other measures. Thanks.
Cool, dry, and airtight location will be fine for a few weeks or a month. I've only sat on milled grains for a month at the most, to no I'll effects. Its less than ideal, but thats brewing for me 99% of the time...less than ideal. I put them in one of my old airtight brew buckets in the closet. Relax and start planning for a kick a$$ brew session when you can finally brew. You have a couple of weeks to work out the details.
I store in an airtight bucket in a cool basement. Get one of those screw-top lids for the 5 gallon buckets. 2 of those will hold an entire bag of bulk grain, if you eventually start to mill your own.
You'll be fine for at least a month. If the seller decided to put the grains in ziplock bags for you, you'lll be in good shape for a few months. As stated, RDWHAHB or two. Do not try to refridgerate or feeze them. a refrigerator has a lot of moisture in it, and I can't imagine what a feezer would do to grains.
Go down to Home Depot and get one of those "homer buckets" with a lid for like three bucks. Put the grain inside a plastic bag, inside that thing, and keep it in a cool place, and it'll be good for weeks, if not months.