Getting rid of stains inside le creuset pans - any suggestions?

[Shoobiedoo]

They are not dirty but have become gradually darker on the bottom. At the moment have one full of hot water and Biotex but am sceptical.

Thanks

I found that Fairy Power Spray did a great job with mine, especially as they are white, it also helped clean up the outside too - all the greasy bits that I had thought were cooked on

Jif

Bleach

bleach, probably.

But I wouldn't bother, they'll only get dark again, and I don't think it affects the food?

coke, I saw it somewhere think you have to boil it, someone correct me if im wrong?