Saw this a while back. I'm interested in what other, more experienced beeks think about it.
https://youtu be/-R-f92J67AU
... worth a shot.
As the lady says ash is alkaline, a pH many a critter avoids. Try some woodash
to start with, from a bonfire where no plastics or cardboards have been burnt?
Only question I would have straight up is the moist ash left after cleaning
would solidify in the cells, bee interesting to see how bees handled that.
They chew wood and dispose of it so solid ash may not be a problem... if they
houseclean it.
Location is interesting. I guessing Filipino, anyone?
Cheers.
Bill