too big a pita for me to bother w/ washing em .
they're cheap . i've hard of ppl. using laundry bags w/ all the lil holes in em and putting em in a dishwasher before . it's just not worth the risk to me , it'll just take a lil bit of old root matter left behind to cause root root n fuk up the next grow . you lose time , electricty , money , genetics etc...
peace
crispi