Microwave Porridge To Go Bowl 5 "Not for porridge - GREAT for other lunch on the go items." Ms Morrison 16 March 2020 If you want to make porridge then use the Microwave Cookware Stain Proof - Red Lidded Bowl 1.4L that is big enough to stop a full sachet portion boiling over. I use this a lot though for my lunches and have done for years. It is the right size. I transport soup in it, although would try and keep it the right way up. Recently seal not as tight and perhaps wrap a used bread bag or tea towel or such like if I think there's a chance it might end up on it's side and have thin soup in it, but otherwise it's very secure.