Here's how I do it.
You'll need plastic buckets
A wire mesh screen
Plastic sheet ( for the floor)
Big mo-fo pasta strainer
Take your perlite and dump it into a mesh like this one and shake the bucket. I like to spray my net with water because it picks up the roots better that way. Just shake a bucket full and then repeat it once or twice more. You'll be able to get almost all the roots out this way, much easier than you'd think.
Now it's time to wash away nutes and salts by putting it in the pasta strainer in batches and spray with your garden hose or something, Run a bunch of water till you feel it's running clean.
Next you have to boil it in the biggest pot you can find. I can do 3.5 liters at a time. Just boil it in water for at least 5 minutes to kill anything.
I can process 40 liters of perlite in 3 hours this way. I like it because it's done with stuff around the house. It does waste water, and the some people are concerned about nute run-off and such but it works well for me. I've been using the same perlite for 2 years now with no problems.
There is also a product that people just dump in that is supposed to sterilize it and is sold in hydro stores.
You'll need plastic buckets
A wire mesh screen
Plastic sheet ( for the floor)
Big mo-fo pasta strainer
Take your perlite and dump it into a mesh like this one and shake the bucket. I like to spray my net with water because it picks up the roots better that way. Just shake a bucket full and then repeat it once or twice more. You'll be able to get almost all the roots out this way, much easier than you'd think.
Now it's time to wash away nutes and salts by putting it in the pasta strainer in batches and spray with your garden hose or something, Run a bunch of water till you feel it's running clean.
Next you have to boil it in the biggest pot you can find. I can do 3.5 liters at a time. Just boil it in water for at least 5 minutes to kill anything.
I can process 40 liters of perlite in 3 hours this way. I like it because it's done with stuff around the house. It does waste water, and the some people are concerned about nute run-off and such but it works well for me. I've been using the same perlite for 2 years now with no problems.
There is also a product that people just dump in that is supposed to sterilize it and is sold in hydro stores.