Cooking for a crowd? This Hotpoint Class 6 built-in oven lets you use four shelf levels at once, because ActiveMultiFlow keeps air moving around the 73-litre cavity so the heat stays even and flavours don't travel between dishes. Hotpoint's own testing, cooking roast potatoes, a lasagne, a tart and chicken pieces together, found it takes up to 50% less time and up to 45% less energy than running those same four dishes in four separate batches.

The Air Fry function crisps food with fast-moving hot air rather than oil. In certified lab tests, frozen chips cooked this way with no oil added came out with up to 50% less fat than the same chips cooked in a deep fat fryer or a frying pan, though results shift depending on the food and whether you add any oil. The air fry tray goes straight in the dishwasher afterwards, so that's one less scrub.