Ikea says: Nothing. Ikea doesn't write cutesy product descriptions. Abi says: There's a world of difference between microwaving and oven-heating the meatballs. If you get to choose, please bake them in the oven. If you don't get to choose, then put a little water in the dish you're using for microwaving and check your meatballs after a minute or two of cooking - that's likely all of the time they'll need. Less