I’ve never had one broken and I do can a lot of sauces and they hold up to those high temperatures and the lids always sealsI love the mason jars! However when I received my package 5 glasses were broke!Used for a baby shower. Painted them pink and gold. Put flowers in them. I trashed the lids. Was hoping the ring of the kid on top stayed but it's connected to the top of lid. But they worked just fine.These jars were made into utensil holders after decorating them into Halloween characters, such as: ghost, mummy, monster and Jack-O-Lantern. I also decorated some as luminaries with painted ghosts, cats, haunted house, scary trees and bats. Arrived on time.Love my jars I am using it for my spices my pantry looks so clean and organizedCheap lids won’t screw on well. Would not trust to put under the heat pressure of canning. Very hard to get off at times due to cheapness.Great jarsLove how my candles turned out.Got these for an aquarium craft - great stuff! They are straight unlike the mason jars which works wellAll jars received no damage. Great quality!