> My food saver Tilia V835 will not seal Mason Jars. The jars are new, the lids
> are new. It draws a vacuum, the machine stops indicating it's sealed but the
> lid pops off with no effort.

If soaking them in hot water doesn't work, make sure that the top lip of
the jar is very clean. The only time I've had a problem sealing jars
was when a tiny amount of liquid or grease got around the seal - very
easy to do when you're filling jars with soup or spaghetti sauce. (A
wide mouth canning funnel is very handy to fill without spilling.)

Karen