To be honest I bought these to make for crafts. However last fall I found myself canning for the first time and needed to purchase some jars. I went to my local walmart and purchased both store brand and ball jars. Every one of the ball jars held up! Not one of them broke! The store brand jars would break while I was sterilizing them in boiling water, some even broke while canning. I was very disappointed. When it comes to glass jars you do get what you pay for! I prefer the wide mouth jars as well just because I can put my hand in the jar and reach to the bottom to clean them. I highly recommend Ball jars!