SLB I value your opinions and you have never steered me wrong yet... so I ask you,how about old sauce jars?
glass with a metal lid with a small strip of sealing medium(rubber, plastic, can't really tell without ruining it). the mason jars seem to have the same thing, the only difference i can see is the mason jars have fine treads on the screw on lids which may provide a tighter seal because it is tighted more evenly around the glass. but on the flip side the tomato sauce jars don't leak air either, I keep them in a pantry for months and the sauce isn't bad when I open it. Yes, I know people will say, "yea but the sauce jar is vacuum sealed from manufacturer!" and yes , that is correct. but, the only true way to seal a mason jar is with blanching and this in turn vaccum seals the lid on. we don't blanch our bud in a mason jar so.............
does my theory sound solid that sauce jars will work just fine?? and yes, I have plenty of mason jars from making my own jam. I am just asking for those who may not be able to purchase them........
I thought of all of this while i was making spaghetti today....yum!!!!!