Properly stored, things really do last a long time.
We accidentally ended up with some vintage 2007 blackberry jam the other day because it somehow hadn't been fronted through several organization cycles in the pantry. 16 years old, and absolutely delicious... almost — dare I say — like a fine wine. This was just standard canned/boiler in a mason jar.
Last year we experimented with wild horseradish; drying it and turning it into powder as a "hot spice." Insane amount of work, but the end result was great.
Sounds like excellent jam! It does age well, with better flavor layer. Sugar is a fantastic preservative, and I've stocked in a lot of it; even though I don't use it for a sweetener.
I bought a bulk load of horseradish, and dried and stored a quart of it! I didn't think of grinding it for powder spice, I'll try that. I also made a strong tincture with it, which is amazing for upset stomachs.
👍💙🙏📖🙏💗🤠🤔🎯