If you are in a chem 20 or30 class at a highschool, your teacher will mot likely have a big ass bottle of ethanol that like 4 liters. They say they add some chemical to make it poisonous to drink but thats not true, just a rumor. anywyas the stuf is $3 for 4L of 100% pure ethanol just take it mix it with pop and your set. Just fill up a water bottle in the class with it and have a small amount with a =nother drink to test it. If you feel really sick then throw the rest out, cause you might have some weird stuff in yours. but some of it is pure and its awesome. A water bottle will last you 2 weeks. 1 shot is equvalent to 5 canadian beers. Good luck