Is there a difference? It's always tasted exactly the same to me!
I think it's quite a large difference. I've tried a bunch of different kinds. Besides the texture being different, the taste is almost akrid. It is definitely less salty but I liked that about it. Breakstones mmm. It's not that I got one that is out of date. It's just the basic taste here. Not nice.
but they have Krispy Kreme in Tesco, bisquick pretty much everywhere, and lots and lots of unflavoured waters (still, sparkling, tonic, etc)
Krispy Kreme is NOT in Tesco. I wish it was. They have their own take on them which are OK but not the same. Nothing is.
As for the water, they have flavoured waters but all of them contain sweetners like aspartame and other strange ingredients. I just like ones that don't contain sugar or anything. I do add juice or things of the like to it sometimes but selzter is my main miss. Especially cherry.