I am from the group of person who believes that Cafe reheated is shit. I just don't say anything because I don't care about drinking cold coffee.

That said, the device has a charm. I doubt you can keep something hot.

I thought I'd seen it all, until I saw a coffee warmer that mines bitcoin.

For anyone that's initially confused, it's a coffee warmer that mines bitcoin.

These are things that will never become widespread...and yet 1-2 people will buy them (usually those with a mania for appearances)