If you want to layer different types of alcohol, it is important to know their density. Find the most comprehensive alcohol density chart here.
https://i0.wp.com/bartenderly.com/wp-content/uploads/2013/06/layered-fluids.jpg?fit=800%2C533&ssl=1533800michaelmichael2013-05-08 22:35:152013-05-08 22:35:15Alcohol density chart – the most comprehensive list available