You should really quit arguing with people you asked opinions of.
What is your bucket made of? PP, HPDE or some other compound? If you can't answer that question then you are guessing at the melting point.
Further, if 414 deg F is your melting point, then what is the deformation temp? Plastic does not have to melt to deform.
Long story short, if you cook yard dirt you get an unbelievable stench that will permeate your whole house - a bag of store bought will seem cheap at twice the price at that point.