Essentially, our glass carboy cracked from the neck down until about half way, while pouring the wort.
A few minutes later the neck came off on a clean break, shortly after we had transferred it into another carboy.
My question is whether, in your opinion, it is still safe to proceed with the fermentation process and there likely isn’t any glass shards and glass dust in the beer or should we just forget it and get rid of it?
Be very, very careful when using glass carboys. You should NEVER put hot wort in carboys. And if one cracks picking it up full can be very hazardous. I’ve been around the homebrewing community for over 20 years and I can’t even begin to count the number of horror stories of emergency room (lacerations) visits that have come from people handling carboys. I once slipped and fell into a carboy that broke and had a nasty gash on my thigh that could have been serious had it been closer to an artery.
I don’t disagree on playing it safe, but shouldn’t the solids settle out? It’s not like he’s going to drink the beer immediately with glass in it. It’s going to ferment, settle, be transferred, etc. I think the risk from the glass is low. But we all need to determine our own risk tolerance.