bake it. My buddy's mum does it to all her perlite, I think its like 4 seasons old now, looks gross, but she washes it and cooks it for 30 min at like 300*F. But shes super eco-friendly.
ForgetClassC Reviewed by ForgetClassC on . Reusing Perlite & Vermiculite?? Hey guys, Just cleaning up from my last grow and am curious. If the two materials hold no nutrients shouldn't i be able to reuse the medium as long as the salts are rinsed from it? A speedy reply would really be appreciated as im ready to go!! :) Thanks Rating: 5