Yeah, I don't know what Lost Coast is either, but even if it will wipe out PM on contact, there will be places that the spray doesn't hit. Plus you will have to wash your plants again anyway.
So it's best to dunk your plant in H2O2 and water, and follow with a dunk in clear water. Of course the plant will be dripping, so I hang mine in the yard under a pop-up canopy for a day, and then move inside for the slower dry.
Did a wash today with H202 warm water followed by a fresh cold water wash. Here were the results. As we can see the H202 took care of the bulk of the crap from the ash and such. The fresh water rinsed the 1st wash off and offered additional cleaning. But look how clear that second bucket...
Honestly I'd just toss that now. Spraying after harvest not good. pM at harvest time also not good. I think there was some studies that said it was ok to smoke PM. But is that what you want? I don't know what's worse the PM or smoking whatever soybean oil is in there.
Did a wash today with H202 warm water followed by a fresh cold water wash. Here were the results. As we can see the H202 took care of the bulk of the crap from the ash and such. The fresh water rinsed the 1st wash off and offered additional cleaning. But look how clear that second bucket...
I may just take those plants to extraction. A buddy of mine is a caregiver and has a process that removes everything bad weather it been PM, bud rot, nutes, chemicals,, whatever, and makes pure resin.