help please, expert knowledge needed

If I get some bum ass seeds that has really low morphine, codeine and thebaine but they are unwashed (untreated), can I realisticaly test the waters first then up it to a point where they are actually not bum (Im talking maybe about a kg), I'm worried that the other alkoloids will make it toxic but like if the thebaine and other levels are already low, does it mean the other toxic alkoloids are also low, so upping it is safe?