the advantages and disadvantages of the 2 methods for preparing alcohol

	Advantages	Disadvantages
Fermentation	- raw materials used to make alcohol is sugar, it is a renewable resource	- the rate of making alcohol by fermentation is slow - batch production only manufactures a few alcohols at a time - the quality of fermented ethanol is impure
Industrially	- the rate of making industrial ethanol is faster than fermentation, however heat pressure is needed to speed up the manufacturing process. - Pure ethanol is obtained from catalytic hydration - The process is continuous, which produces more alcohol than fermenting it.	- Raw materials, ethene used in the process - is from oil, a finite resource.