Preserving Your Harvest

[Smokerbill]

If there is enough vacuum to pull the raised circle of the lid down, there is enough vacuum. If not, then not. Otherwise, it doesn't matter how far the lid is pulled down. At least, I think that is how it works. How else makes any sense?

There's not much if any of a dimple on the new Ball lids which is why they didn't pop. The Walmart lids all have a pronounced dimple in the center.