Oops, we all do it. But here's what food safety experts say.
Is it mould? Or worse? Experts share everything you need to know.
Frozen foods can still be jam-packed with nutrients and vitamins, so add these to your shopping basket.
Chefs, a food scientist and a nutritionist advise when frozen veggies will do the trick, and when you just have to go fresh.
The government's recommended five portions a day is impossible to achieve right now.