disinfecting used unglazed clay pots
I'm running out of unglazed clay pots so I decided to reuse some old ones. The problem is, the only ones I have contain the remnants of several dead divisions of a Dendrobium that died days after I repotted them separately (the canes just instantly started yellowing and the leaves were dropping, and within a couple days they were all goners). I don't want that to happen again, so I want to disinfect the pots. Can I literally stick the pot into a pressure cooker? Or can I boil the pot in water? Or is rubbing alcohol sufficient?
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