How to thaw a bottle of beer that got frozen accidentally without exploding the bottle

I've had the same experience as you, with beer and other liquids frozen in glass bottles. Whenever I try to rapidly thaw them, it seems the structure of the glass is compromised in some way and it either explodes or cracks - this even has happened to me when trying to slow thaw, like you did.

Beer bottles, and especially cans, can explode in the freezer and will make an ungodly mess. Beer bottles exploding in the freezer are rare, but I've heard anecdotal stories from people I trust who said it has happened to them, perhaps with improper bottling and not enough room for expansion in the neck.

Since a few bad experiences with forgetting things in the freezer (I had an aluminum can of Hawaiian Punch literally explode all over the freezer one night, that was a MESS) I now only use the salted ice bath method!

I have tasted beer that was frozen and thawed without any glass shards in it, specifically a can of beer that partially exploded (I guess I didn't learn my lesson from the Hawaiian Punch that quickly). It had enough left frozen in the bottom of the can that I figured I should thaw what was left, and give it a taste. It wasn't bad, but it tasted a little...flatter than normal, I guess? It just wasn't as full flavored as I expected. Definitely a noticeable difference to me.

If you can figure a way to thaw them safely, I'd use frozen beer in beer bread. That should be more forgiving than drinking it.

I would suggest the best way is slow cold running water over the bottle in a bowl that covers it. Reason being any rapid temperature increase is going to break the glass. You may lose carbonation but really that is how beers starts so I wouldn't worry to much. For taste, it might taste a little bit different. I have frozen wine on accident and it actually didn't turn out bad. When I bought the same wine and didn't freeze it I got the same flavors. I think it should be alright.

Well, if you happen to have more than one frozen bottle of beer, I would suggest doing just the opposite of the suggestions so far. Put one of them in a bucket of HOT water. I can imagine how this might work, but I'm loath to try it.

I've seen a microwave used to quickly thaw a bottle of Newcastle that had frozen. Take the cap off, and run it under cold water until there's liquid surrounding a frozen core, then microwave in short bursts until thawed.

Fair warning: it tasted awful. You'll want to have consumed every other bottle in the pack before bothering with this...

I would suggest removing the bottle cap before thawing the beer. Of course you'll want to put it someplace that won't be harmed if it makes a mess.

As for the resulting flat beer, maybe you could use it in chili, beer brats, beer can chicken, or childish pranks. :P I've also heard that beer can be good for plants. Here is a listing of several other uses for beer, most/all of which work well with flat beer.

I don't believe it would work well in beer bread though since the carbonation helps the bread to rise.

I submerge can or bottle in cold water to minimze rapid temp increase as this changes the drink, I froze it already so try to minimize my error, and I cringe and drink my beer, its a bit different tasting but does the trick

Use a plastic bag... It's good for thawing and slow freezing. Just keep your bottles in the bag.

This answer addresses: Frozen root beer / glass bottle / verified method of thawing without glass breakage / leaving the bottle UNOPENED, for future consumption.

There has been some helpful speculation, but only one of the answers here, so far, has described successfully preventing breakage while thawing UNOPENED frozen glass bottles of beer. It was a little light on details.

So I'll share my experience, and in a little more detail. But I won't be addressing the part of the question dealing with flavor. Note that my experience is only with root beer (non-alcoholic / soda pop / soft drink / similar to cola).

I had a frozen glass bottle of root beer that froze outside overnight last night, when the temperature dropped to 4 degrees Fahrenheit (-16 degrees Celsius). Before the bottle could warm up very much, I submerged it in 1.5 gallons (6 liters) of 49 degrees Fahrenheit (9 degrees Celsius) tap water. When I checked on it two hours later, the root beer had thawed completely, and the bottle hadn't broken or cracked.