Barrels explode after being welded together - GIF

[jdurand]

A peripherally related comment: I bought a can opener of the type that cuts the can lid crimp ring from the side (instead of the lid itself) and I use it frequently to make shop storage containers since the separated lid still fits and seals onto the can. I've even been known to go to the grocery store looking for some food in a container that's about the right size that I need to later use once the food's gone.



If I have to torch cut into a barrel after emptying it, I always flood the barrel interior with Argon from my TIG torch first so if there's any flammable vapor remaining there's no oxygen in the barrel to support combustion.

When we were in Russia a couple of years back we were given a big jar of home canned mushrooms. We brought it home and then pondered how to get the bloody thing open. That funky crimped rim meant that nothing we had would get under the edge and uncrimp it.



We finally got into it without breaking the jar, the mushrooms were great!

One of the first things on our shopping list when we return is to get a jar opener!