I was fortunate to try a drop from one of these very old bottles once. My ATK coworker was conducting a tasting of a hack where you replicate the "aged" taste of balsamic vinegar. We tried the hacked vinegar side by side with the decades-old stuff in a blind balsamic vinegar taste test.
Guess what? I guessed the wrong bottle. I picked the fake stuff as being the expensive sample.
Now I’m no expert on balsamic vinegar. I’m certain those with ultrasophisticated palates will have an easier time picking out the hacked sample. But for most of us mere mortals, you can easily make cheap balsamic vinegar taste like one from a $300 bottle—and not tell the difference.
Want to try it yourself? Here’s how to make balsamic vinegar taste expensive.