Mini Horses
Sustainability Master
My thought was concern with grease getting between lid gasket and jar rim... 

Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.

My thought was concern with grease getting between lid gasket and jar rim...![]()
I get water oily after canning fish sometimes but they all have sealed just fine. Didn't have any of those problems with the quarts of beef.
I always listen when opening a can or jar for the air. Was taught that as a kid. I've very rarely had lids fail and if it's questionable I toss. I've had more bad cans from the store than home canned items.