sometime in the recent past Omelet posted this:
In article ,
Shanghai McCoy wrote:

Would a food dehydrator do it? I'm actually interested in drying all of
my excess herbs (sage, thyme, parsley, chives, dill), but the rosemary
seems like it would be the most problematic due to the resin... TIA!

Yes, a dehydrator works. Rosemary dries just fine!
Or you could save the electricity and just put it in a brown paper back hung
in a dark spot for a few days. Works on all my herbs. The resin in Rosemary
actually makes it less likely to spoil this way, just never pack the bags
full and occasionally give the bag a little mixing.

JM2¢
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Wilson N44º39" W67º12"