Do glass bottles seem to weaken over time?

[duganderson]

I'm curious if glass bottles tend to weaken over time with use. I carbonate with yeast in brown 12 oz bottles from my local brewing store and also Mexico bottled coke bottles and random beer or cider bottles (all 12 oz.)

--Doug

 

[beerman1957]

Glass is actually a non-viscous liquid. It does weaken over time but I think it is a LONG time. I would think that in your lifetime you will NOT see a failure unless it is an external event such as a rapid cooling from hot or dropping the bottle.

Even if a glass bottle drops and does not break, there can be small fissures around that are not visible. I would not keep any bottles that hit something and do not break. Maybe that is overkill, but just saying.

 

[homebrewer_99]

Yes, they do. Send all your full bottles to me for a free testing...j/k...

I would say not really...