Fermentation
Advantages : It uses cheap and renewable resources to make alcohol, examples of these include yeast, sugar canes and sometimes rice.
Disadvantages: Although the products are renewable they take a lot of time to make the alcohol due to the fact that it is a slow reaction.
Industrial Processes
Advantages: It is a very fast and efficient way to make alcohol this way, also it is a continuous process as long as you have Fossil Fuels
Disadvantages: Due to the fact it uses non-renewable resources ( they will eventually run out) so it could eventually stop when we run out.
