Does adding a knob of butter to jam,

bjkiwi, Apr 16, 10:08pm
to reduce the scum - affect the longevity of it? and at what stage do you add it? TIA

jessie981, Apr 16, 10:20pm
Add butter when the jam is cooked. Doesn't affect longevity. Happy 'jamming'.

goodbooks, Feb 8, 1:00am
Yes to #2 from me too.