It gets so hot here that I try to not use the oven much in the summer. So, I wash the used LECA really well, let it completely dry, then put it into flat roasting pans. I put these in the BBQ grill and hold the temperature at 350 to 400 degrees for 3 to 4 hours. I have no idea how stable some of the orchid viruses are so maybe this is overkill. Remember, if you boil it you can't achieve a temperature greater than 212 unless you use a pressurised vessel.
The chid in my avatar right now is:
Epc Landwoods 'NN'
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Susanne
It's beautiful Sue! Did it ever develop a scent?
I am so blown away by the HUGE variety of orchids out there. I knew there were a lot but I keep running into chids I've never even heard of before. They are so amazing!