Not the only ones. If I'm annealing some of the more awkward air-hardening steels I'll usually stuff it in an ammo tin full of vermiculite.
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Do I have to buy like a one tonne bag though :D??
;)
LOL.
They're really quite manageable. Even for a lazy old one tonne bag like me!
The garage has its uses :D I can line the vermiculite up with the compost and no-one will ever know (wonder what "normal" people use vermic for LOL)
Em
And I believe it has some hydroponics appeal too.
well, now, I wasn't going to go there!
There are legitimate uses for hydroponics too!
Oh, yeah, course there are. Forgot those.