Thank you very much John and Steve for your kind advice. I'll look out for these products when I'm next in 'Narridge'.
Another pet hate (moan moan) is those stupid milk-container closures where you have to pull a tab to get the top off. The silly little tab often breaks off and you have to get a knife to poke a hole in, then fart about getting the thing to peel off. More bad language, more husband hiding in the study. So many of these type of closures are, I suppose, to stop wicked people trying to poison our food and drink on the supermarket shelves. I read recently they've found medication tablets in ice-cream. Weird.