You have probably heard from both friends and experts many times that any wine you like is a good wine. This is true if simply enjoying wine is your goal. You don’t have to do more than take a sip, give it a swallow and let your inner geek decide “yes” or “no.” The end.
It’s true that figuring out what you like is an important component of wine tasting, but it’s not the only component. Quickly passing judgment about a wine is not the same as truly understanding and evaluating it. If you’re tasting properly, you will be able to identify the main flavor and scent components in every wine you try; you will know the basic characteristics for all of the most important varietal grapes, and beyond that, for the blended wines from the world’s best wine-producing regions. You will also be able to quickly point out specific flaws in bad wines.