Katra wrote in message ...

I wonder if UV would work also, since I have access to a UV
machine.

Careful. UV kills tissue too. :-)


It came to me that the best way to avoid surface contamination is to
peel the stems with a sterilized knife (place blade on open flame,
peel using bleached latex gloves on bleached plate, immediately toss
peeled stem into bleached blender). As you can see I got my education
from brewmaking. Do you add water when blending stems? And why fill
the toilet paper core, when, say, tossing the mush with sterilized
straw would very much increase the contact surface.