Both natural and added glycerin result in the tequila having legs in the glass and add weight and body. Glycerin added after the distillation process tends to disappear in the middle of your sip ...
Tequila is one of the most versatile spirits at the bar, but if you want to enjoy it on its own, then don't ruin it by adding ice to your glass.
Montage featuring a margarita, añejo tequila in glass, and a tequila aging barrel in front of an agave field - Static Media/Shutterstock/Getty ...