Loosely related to the pending marijuana legalization in Colorado and Washington, where the limit will be one ounce.
Are there any laws limiting the possession of alcohol? Could I stock my house with 2,000 bottles of grain alcohol? If I tried to buy them all at once, would the authorities intervene?
I’ve never heard of a limit, assuming it’s not obvious you’re reselling without a license. I’ve seen some pretty impressive wine cellars that seemed perfectly legal.
I have never heard of a limit either, but grain alcohol isn’t legal in every state (or limited to ~150 proof).
Also, I think the reason behind the 1oz limit is to discourage resale. If the product isn’t illegal/highly restricted - there is no reason to really put a limit on it.
There may be limits on how much grain alcohol you can make (for fuel), provided you have a license, similar to the various limits on how much beer (wine/cider/mead) you can brew in a year.
If you have ever seen a photograph of a whiskey warehouse fire, then it would be clear that the amount of spirits you can have on site would be, at some point, a safety issue (or an insurance issue). But a legal issue? Good question.