I am able to purchase a 55 gallon metal drum to attach my corn vac too for cleaning my corn. The drums had Methanol with blue dye in them, also called windshield washer solvent. I know methanol is flammable, but i was wondering if I wash it out good with water, or soap and water and then let it evaporate, will it be ok to clean my corn into it? I can buy these drums for $5.00, the guy says a lot of people buy them for burning scrap in them so i guess it should be ok but i wanna be sure.