I promised this post months ago and I do apologise! It’s been sitting in my drafts folder for quite some time. I ended up waiting for a certain flatmate to move out before doing this, as she had a habit of burning everything in the kitchen (if anyone has any tips on getting a burning smell out of a microwave, 6 months on, please let me know as that one has me stumped).
Anyway, the oven was nice and grubby by the time she left:
Cleaning it, however, was really easy. Just sprinkle with bicarbonate of soda (which I buy in bulk at Unpackaged).
Spray with water, and wait. For a really grubby oven you can heat it up a bit, but not too much.
Not bad, right?