The chemical formula of ethanol is C2H5OH. It is an inflammable liquid, which can be used to generate heat energy. Because of its being combustible, ethanol can be used in ”internal combustion engines” as a substitute to gasoline. Ethanol can be prepared at cheap cost price, that is why using ethanol instead and along with gasoline, we can save a lot of fuel cost. Ethanol can be added with petrol/gasoline with 3:1 ratio, to make an efficient and energetic fuel mixture. Another benefit of ethanol is it give long life to the engine, as it is naturally soft and oily/lubricated. In this article we are discussing the step by step manufacturing of ethanol at home with a cheapest way. Follow these step and get a reasonable amount of ethanol prepared.