Glass breaks, It is what it does. 99% of all glass is on a countdown timer to being broken. This is not isolated to carboys, look at the hydrometer and thermometer count threads. However you do not hear people freaking out nearly like when a glass carboy breaks. "Zomg you need a digital thermometer so you don't cut yourself." - never posted... I do realize that people HAVE been seriously hurt by carboys but the same can be said about automobiles yet 90%ish of us drive.
To date, I have BOTH of my original hydrometers and have only broken 1 thermometer and it was 100% my fault. I actually really miss that thermometer and have yet to find a decent floating thermo replacement...I believe this is the universe punishing me for my own stupidity.
What blows my mind is how people treat glass carboys. I have a 3, 6 and 6.5 and use them often. My mother has probably 10 5-6 gallon glass carboys. (She makes wine and is in her 60's) NEVER have we lost even 1...as of yet.
Following some simple steps should help YOU keep yours and keep you out of the hospital...
- Do not use the carboy neck handles. These will add unnatural stresses to the neck.
- Do not EVER move or pic up a carboy full of ANYTHING there is no need to do it, even to clean them, make yourself a carboy washer with a pump and a bucket (The DIY section has many posts on these).
- When you must move an empty carboy across a room/a distance use a milk crate. I prefer the milk crate over the brew hauler straps for the same reasons I do not use the carboy neck handles.
- When handling/picking up an empty carboy remove all jewelry prior to doing so and be cautious of hard buttons/zippers (like the ones on bibs/coats) and use both hands, one on the neck and one on the bottom, never bear hug it.
- Be ready/anticipate it slipping, be ready to let it go and jump back at any moment. The less time it is in your hands the better.
- Do not aerate wort/must by shaking, rocking or rolling it. Aerate prior to or on the way into the carboy.
- Never add any liquid that is not within a few degrees of the carboy and make sure the carboy is not in a place where a strange temp shift can occur (Like in front/on top of a vent.)
- Do not 1/2 submerge a glass carboy in a tub of ice water because of the temp differential with or without a t-shirt over it, same reason I would not use a brew belt (electric heater) on one.
- Do not use a carboy with a visible chip or crack, replace it immediately and recycle the old one.
I feel that glass carboys are better than Better Bottles because of sanitation and long term oxygen permeability. Do not get me wrong, I also use Ale Pails and my most favorite fermenters are sanke kegs, hands down. I use my carboys mostly for bulk aging wines because I do not want to tie up a sanke and do not trust an Ale Pail or Better Bottle for a year-ish of bulk aging.
I wish all safe and happy brews!
