My favourite shop beer comes in a screw off top bottle, and I'm wondering if I can reuse em by just screwing the cap back on with my own homebrew inside? Btw I don't have a bottle capper, this is another reason it would be perfect for me.
Noz03 said:No no sorry I guess I wasn't clear enough, I mean glass twist cap beer bottles like this
I tried with water and they hold it in fine, and I guess the pressure can not push a screw cap off right?
Noz03 said:Actually I am now recalling a time when the shop beer actually exploded in its own bottle after I carried it home and I guess shook it up a bit :/ Could that happen to any bottle or do you think it might be more because it was a screw cap?
Noz03 said:ooooops... sorry explode was a very bad word to use. I meant the cap came off and as the bottle was on its side, at the very top of the fridge the mess was pretty bad! Wasnt even my own fridge, was at my friends house! Btw that was a shop bought beer, i didnt bottle it myself.
How do you think the commercial guys seal them?
They crimp them on just like us.
You asked, we told you "no, don't do it," you didn't like our answer, you're gonna do whatever you want, that's fine, but we're telling you the prevailing wisdom says it's not safe/reliable.
We use screw-on PET bottles or pry-off glass bottles with a proper capper. We know that works. Re-screwing on your twist-off caps might work, but I wouldn't gamble a batch of beer on it.
I'm bottling on Monday and I have a few screw tops in the Batch 19/Shock Top style. I'll bottle a sixer in the screw tops with my capper and compare them to regular pry offs in a vertical test over say 8-12weeks, opening one every week after a normal carb and conditioning. I can spare a sixer for the edification of The Rabble.
Down with conventional wisdom, blah blah blah....
I do believe that commercial beers also crimp their screw-tops, if you take a look at the cap afterwards it's a standard cap that molds to the glass thread on the bottle, anyways I have a lot of bluemoon bottles that I plan to reuse next week, I filled one with coke before and crimped it (regular wings crimper, regular new beer cap) checked for leaks, none, shake it, leave it overnight, shake it some more and again no leaks. I was able to twist off the cap like it was brand new, and the coke still had CO2
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