I used mine for all the "you can'ts" in the book, cast iron, canning, razor blades. Never a problem until one day I took a bag of fruit from the fridge and went to "crack" it on the edge of the countertop like a bag of ice. Missed the counter & hit the stove, big shatter through my most-used front burner. Oops! Expensive mistake, I forgot it wasn't indestructible.