My guesses would be to ensure a certain amount of thc or that the weeds not to strong. The sticky icky is the good ish right? So there maybe some law or regulatio. That caps the strength idk coukd be talking out my ass haha. But also mold idk if that sticky goodness can cause mold but if it can than there's not much of a use of putting it in a jar to sit in a shop for a month or two.