lost artJust like the canned goods you buy in the market, it will last a long time. When it's time for use, push down on the lid, if the button pops down don't use it. every so often I pull a jar for use where that has happen for what ever reason, more than likely something on the rim of gar which did not get wiped off. I have some canned bread and butter pickles, one of which I just recently opened, that have been on shelf for well over a year. Also some tomato sauce that's I use every so often that has been on the shelf for over two years. The key to canning is the prep work. Boil jars, ring and lids for ten minutes. Remember to wipe rim of jars before putting on lid and rings. Just put lids on finger tight, you will tighten them down after they come out of cooker and cool down, during which time you will hear the lids snapping down. When ready for pressure cooker first vent cooker until steady stream of steam is coming out of vent, them put vent knob/weight on and don't start time, 90 minutes, until cooker has reach 15 PSI. When time is up DO NOT remove lid until pressure gauge reads 0 PSI. I have the old style Presto pressure cooker, stove top style. I can do about 15 half pint jars at a time.
Grandma used to do all the jelly and jams that way. Nothing betterJust like the canned goods you buy in the market, it will last a long time. When it's time for use, push down on the lid, if the button pops down don't use it. every so often I pull a jar for use where that has happen for what ever reason, more than likely something on the rim of gar which did not get wiped off. I have some canned bread and butter pickles, one of which I just recently opened, that have been on shelf for well over a year. Also some tomato sauce that's I use every so often that has been on the shelf for over two years. The key to canning is the prep work. Boil jars, ring and lids for ten minutes. Remember to wipe rim of jars before putting on lid and rings. Just put lids on finger tight, you will tighten them down after they come out of cooker and cool down, during which time you will hear the lids snapping down. When ready for pressure cooker first vent cooker until steady stream of steam is coming out of vent, them put vent knob/weight on and don't start time, 90 minutes, until cooker has reach 15 PSI. When time is up DO NOT remove lid until pressure gauge reads 0 PSI. I have the old style Presto pressure cooker, stove top style. I can do about 15 half pint jars at a time.
Peaches, pears, apples, meat, green beans, peas, tomatoes, ectYup Mom started all the kids, nine of us how to cook and can at an early age. I prolly started when I was ten +-. Mostly jams and veggies.