Burning firelessly?

I am looking for a material, best if it can be in sheet form, paper-like, that burns without creating a flame. Which means, it just turns into ash under high heat with a little glowing or something… much like how bread burns but I am hoping for a more powdery or softer ash. Is there anything like this?

What about those mesh bag things that Coleman lanterns use?

Do you mean this?

I’m not familiar this this, got to check it out in stores.

I am using this material for burning, so it the cheaper/disposable the better.

I’m going to try with starch paper first.