I would like to make jams for the first time. How long to they stay fresh?
How do you seal the jars? If you can give me anymore info. I would greatly
I don't think "fresh" is the operative word since jams are technically a preserved food, but they will be safe to eat for at least 1 year or more. I don't keep mine past a year, but if you are making a traditional jam with equal amounts sugar and fruit, it is a pretty durable foodstuff.
When you process the food correctly, the jars seal themselves, check out these guidelines.