Q. Can you kasher pots and pans or cutlery by just placing them in an oven and running a self cleaning cycle? (a much easier task than immersing each item separately in a boiling pot)
Can those items be touching each other when being kashered together in the oven?

A. Horav Shlomo Millers Shlita opinion is that if they require only hagalah in boiling water, placing them in an oven for thirty minutes at 230° C – 450° F temperature will suffice. The utensils could be touching each other.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a