Got a Cab small batch kit for my birthday, beer brewer for about 8 years and this was to be my first wine. Added must to the glass big mouth bubbler and about 3 stirs into the 'stir vigorously' step the fermenter cracks almost totally from top to bottom and there is grape juice all over the kitchen. Is this common with glass fermentors? I can't believe they would sell kits if you really have to treat them with kid gloves. Not sure at this point whether to buy a replacement or just ditch the idea of winemaking. Thanks in advance.