To be fair, four of them were my fault for not having a greater appreciation for physics. I knew what I was doing by stacking the carboys was a gamble. No one’s fault but my own. The other three happened just about six weeks ago with a bad batch of purchased carboys. Of the six I recently purchased, three cracked and spilled the contents. Of the three remaining, two had cracks - I discovered after I transferred to other carboys. The other thing to consider is my opportunity score is rather high. I have 56 carboys full and aging right now. Why, you entertain? In short, to give away while enjoying the process of becoming a decent winemaker.Re: the breakage of the glass carboys - that is awful!! Any idea how? One, I could understand: seven, is a mystery. Feel sorry for you Crush, Dizzy