I recently did a cold water extraction of 15 prescription hydrocodone pills (125.5mg) for a family member.
Removing a good amount of the 750mg of liver-toxic Tylenol (Acetaminophen).
I used purified water and put the hydrocodone solution in an empty water bottle and into the fridge.
Now, about 2 weeks later there is some blackish mold growing in there.
Is there no way to save this? I'm not very chemistry savvy.

dry it to a powder, then mix with ethanol?
find melting/boiling point of hydrocodone, then boil it?
ab then extract with diethyl ether? lol