Re: oven cleaner
I have heard that oven cleaner will cause the teeth on a blade to come loose. Since, as hewood says, there's so many other products that work, I won't use oven cleaner. I happened to have a bottle of goo gone hanging around, so I used that and some brushes I had and it worked fine.
I've also heard that soaking them in coffee will work. I never end up with enough coffee left over to test that theory though.
I put it all back together better than before. There\'s lots of leftover parts.