Thanks for your input Stef - just run it by us as to what the measurement dl stands for please.
JD, I think it's deci-litre, but I'm not sure what that equates to - 1/10th of a litre (or perhaps 1/100th of a litre) The measurement is used a lot in Europe so I am sure one of our European members will set us straight. Unfortunately, I still tend to think in imperial for some things and metric for others and I haven't quite caught up with deci-litre yet.