Unset jam - can I reboil day after with added sugar?

[Rzim]

Just that really - made some Damson Jam - rushed the process so it hasn't set - can I reboil it today in the hope it will set? Thx x

Yes.

I'm not sure you need to add sugar though, if you already had the right ratio. Just cook down a bit longer.

(But I'm no expert)

Yes you can. It might need more pectin? A squeeze of lemon juice or a lemon rind can help.

https://foodinjars.com/blog/canning-101-how-to-save-runny-jam/

Many thx xx

Yes re- boil but don't add any more sugar or it may crystallize.

Thx all worked like a dream!!! X

I made damson jam for the first time last week and it set like a dream. I only needed 10 minutes at the fast boiling stage and the first test was a set. Really firm actually.