It’s no surprise that supermarkets have got in on the action and created their own sourdough loaves

Experts warn that not all sourdough loaves on supermarket shelves are the real deal — and there's one simple label check that identifies the difference instantly.

I've always been a huge fan of Jason's sourdough bread at around £2.15 a loaf, but I wondered if cheaper supermarket own-brand alternatives could match the quality - so I put them…