User blog comment:Glflegolas/A GIF of the thermite reaction/@comment-26073467-20160206054348/@comment-4750818-20160206122412

That's not a coffee mug. It's a crucible, which is designed for taking heat like this time and time again. A normal coffee mug would probably just shatter.

Glflegolas (admin) Send a Messenger  12:24, February 6, 2016 (UTC)