Ascholten
Free Ranging
Press down on the lid see if it pops. If it does then there is a problem.I did applesauce for the first time this fall. I think they leaked a bit after I go them out of the canner, I think, i noticed the outside of the jars a bit sticky the next day... But the seal seems great. I left an inch of clearance, but now the applesauce is touching the lid and there is an inch or so of liquid at the bottom of the jar.
I hope they are ok.
Id say some liquid on the bottom might be normal as it will naturally settle out a bit but if it's expanding to take the space up and pressing ont he lid, that sounds like some sort of fermentation going on, or anerobic bacterial oogey boogey you don't want.
Keeping that sealing area clean is the most critical part. That would be the top of the lip of the jar and the little rubber ring?? it touches on the bottom of the lid. Anything in there is just inviting issues later on. If you vaccuum seal bags, it's the same thing, if you got food dust or particles in that area where it's going to heat seal it, it has a very good chance of leaking and letting air in with whatever else is in the air.
Aaron