That is one of the common misconceptions about a whiskey tasting event. One small pour in a small glass can last an hour easy as all the participants fiddle with it and experiment with how the nose is changing over time or the flavor changes as you warm it up with just the warmth of your hand. TMM has a super handy tasting wheel printed out and it really helps folks use the same language with their evaluations. Not to say folks don’t get trashed on occasion but ideally you only sample a few over the span of several hours. Last time I did six, and honestly I think it was two to many.