Ways to sterilize coco huts?

[DendroTerra]

I'm looking for a way to sterilize coco huts to use them in new tanks. I was thinking the oven on not too high of a degree for not too long of a time.

Anyone have a proven word of advice?

I don't really want guesses. I like to be as careful as possible with any tank to tank items. If you really know, I'd love to have you tell me how to get them definitely clean.

Many thanks,

~Tobias

[Dancing frogs]

Pressure cooker.
No guess work whatsoever.