Cheers, i'll give it a go tonight. :thumb:
[edit]
Was looking at the ingredients for Ribena and wasn't impressed with the fruit juice content (22%) so picked up a bottle of asda blackcurrant high juice which is 45% and about 80p cheaper.
It's got Sodium Metabisulphite but I assume this can be boiled off same as the Potassium Sorbate.
Didn't get round to making it as I was making a curry so i'll sort it tomorrow :thumb: