I have had three cups go on me. The first one exploded because I set the hot cup on my cold SS table. This was quick learning curve; scared the beans out of me.
The next one was also my fault. Pouring in the winter, set the hot cup down on a silicone pad that I use and opened a window right behind it. This time it just cracked.
The third time was with a split cup. When I made this cup I put the metal divider into the cup and sealed it in with JB Weld; by doing it this way you can see the bare metal through the glass and this is where it arched which cause the cup to crack open. Now I paint the cup with JB Weld where the metal is joined to the glass and then install the metal sealing it in with more weld.
Long story short; all of these were preventable with a little more knowledge. We all learn through mistakes and this is why TU is so important. It allows us to pass along these learning curves to each other.
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