Last week at work a customer was served a batch of onion soup that was burnt and overloaded with black pepper.
After receiving the complaint I heated up a new batch for them. Upon tasting the properly made, yes it’s tasted exactly right, they commented that it was bland and flavorless.
The active ingredient in black pepper that causes pungency is piperine. Piperine is a alkaloid that works by activating the heat and acidity sensing ion channels in pain sensing nerve cells.
What does all this mean? Well the first batch of soup gave the customers a faux heat and chemical burn on their tongues preventing them from tasting any food that followed the first batch of soup.
Why is this of importance? Well it shows that taste is not just subjective based on the diner’s culture, upbringing and past experiences but also what was in their mouth five minutes ago. So, because of this when building a multi-course meal this should be on your mind not just as a cook, but also as a diner to better enjoy your experience at whatever establishment you are patronizing.
Obviously none of this excuses the cook in question who didn’t taste his god awful soup.

