General Category > Kegging and Bottling

Re-using commercial pry-off bottles

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I saved the bottles from six-packs of Paulaner and also Weihenstephaner hefeweizen and am considering re-using them. Both sets are identical and are obviously from the same manufacturer. Since those are bottle-conditioned beers, am I safe to assume they are strong enough for my own hefe and carbonation to 3.5 units of CO2? I have been weighing bottles, and the empty bottles I bought from Midwest are about 9.5 oz. and these German bottles are about 8.7 oz. Compare that to Sam Adams bottles which were quite a bit less - less than 7 oz. if I remember correctly. The thought of flying glass near my face is a little scary.......

You should be fine at 3.5 units of CO2....  Unless you have a defective bottle.  :o

I use the Sam Adams all of the time.  I prefer the amber to the green.

are there any commercial bottles that anyone know of that are unsafe to use for bottle condtioned beers?  i had never thought about this when bottling.

I have never personally had any bottles explode on me, and I have been re-using commercial bottles for years for bottle-conditioning. In fact, the only time I have ever even really thought about exploding bottles is when I have made sodas with the kids.

For beer, I have stopped using 12oz bottles though, and switched to the 22oz bottles, which are considerably more heavy duty than 12oz bottles. So my thought is, if you are really worried about it, switch to 22oz bottles.

One might venture to say (depending on the beer style - of course), if you end up with exploding bottles when brewing beer, you may want to take a look at your process (bottling too soon, too much priming sugar etc). You could always take a play from the soda maker's handbook, and refridgerate your bottles once they hit an acceptable level of carbonation - although you will slow to a crawl any further conditioning - if needed.


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