When is the last time you cleaned out your liquor cabinet? You've used and replaced your favorites many times over, but you've probably never made it to the back of the shelf, uncovering those less popular bottles.

Not sure if that bottle of Bacardi is still good? Ask your bartender!

Dave gives the quick rundown on liquor expiry. He outlines the basics, and by keeping them in mind you'll avoid sipping rancid rum. Explaining the "half-life" of distilled spirits, he dispels the mystery that shelving a 17 year old bottle of scotch for 20 years makes it a 37 year old bottle.

Understanding your liquor's shelf life, and making sure that you store the bottles tightly capped, in a dark place, and free from extreme temperature will keep the quality of your drinks high.