I was on a roll. So I thought I would use up the frozen strawberries in my freezer. Unfortunately I think the fact that they were frozen and the fact I didn't read the recipe as well as I should, produced a jam with a lot of foaminess that I couldn't get rid of. Anyway at the end of the recipe it said remove scum, I tried but it was near impossible to get rid of all of it. It still tastes lovely and strawberry jammy, it just doesn't look like it would win a sash at a beauty pageant. Ah well, as with all little mistakes, I suppose I learnt something from the experience.