On Monday, 10 December 2018 10:18:40 UTC, wrote:
It's hard to get those asbestos-cement boards these days!
ISTR asbestos cement explodes in a fire.

We always used to have an asbestos simmering mat like thise

https://www.abshealthandsafety.co.uk...-web-small.jpg

Horrible unhygienic things, getting encrusted with grease.

Owain