I have been thinking about order 100% ethonal(^^OH) from a chemical supply on line. I know that i need to get undenatured/pure ethanol. What other kinds of contaiments way be present in ethanol (i.e. methanol?). Should i dilute it, I have had strong alchol before (151 proof). I know enough to no let me or any of my friends drink enough to get alchol posioning. Thanks for your time.