The only alcohol suitable for drinking is ethyl alcohol, a liquid produced by distilling the fermented juice of fruits or grains. Pure ethyl alcohol is clear, flammable and caustic. Water is therefore added to reduce its potency. In the United States, the average amount of alcohol in distilled spirits is about 40 percent (80 PROOF)A USDA study has disproved the theory that alcohol evaporates completely when heated. In truth, cooked food can retain from 5 to 85 percent of the original alcohol, depending on various factors such as how and at what temperature the food was heated, the cooking time and the alcohol source. Alcohol has been used medicinally throughout recorded history; its medicinal properties are mentioned 191 times in the Old and New Testaments. Medical research suggests that alcohol can have a greater impact on heart disease than even these hard-won reductions in cholesterol levels or blood pressure. Only cessation of smoking is more effective.