Ooh, slapped wrist for me of course it is conserve!!!?
My mother also made many pounds of blackcurrant jam every year as we had lots of bushes.
In her later years, everything went in,bits of stalk, the beardy ends and tiny unripe green ones.
We had to be very diplomatic when presented with a jar.
She used a "jam pan" her father had won in a village show for his prize vegetables circa 1900.
It is solid brass ,weighs a ton and when I inherited it I cleaned it up and took it to a local florist who filled it with a dried flower arrangement and it sits on my hearth.