Ollie Pudney, head chef and co-owner of the Bull & Last, Highgate
"There’s so much crap out there, but what really annoys me is when you get a ketchup bottle that’s really old and it hasn’t been washed out or refilled and it explodes when you open it.
"Also, if you put fresh ketchup on top of old ketchup when you refill the bottles, it just goes fizzy. Crusty mustard pots also annoy me. It’s basic housekeeping that should be done every day and really makes a difference."
