Somewhere in this monster of a thread there is a post about sterilizing DE for re-use. I made a note for myself because I knew I'd never find it again!
Spread it out on a baking sheet and place into a 400F oven for 30 minutes.
There was also discussion about whether or not it should be rinsed prior to baking (to eliminate salt build up, I believe). What I remember is that if you are only using organic fertilizers, this wasn't a concern.
|