“Banana flavoring tastes nothing like bananas because it was based on an extinct variety”

Many people have noticed that the vibrant, sweet taste of artificial banana flavoring found in candies and desserts often doesn't quite match the flavor of the fresh bananas we commonly eat today. This discrepancy has fueled a popular belief that the artificial flavor was based on a banana variety that no longer exists. This idea suggests that our taste buds are experiencing a ghost of bananas past, a plausible-sounding explanation for a noticeable difference in flavor.

The historical evidence largely supports the origin of this myth. Artificial banana flavor, primarily isoamyl acetate, was indeed developed during an era when the Gros Michel banana was the dominant commercial variety. The Gros Michel was prized for its creamy texture and sweet taste, and its flavor profile, rich in isoamyl acetate, served as the blueprint for early artificial flavorings. However, the Gros Michel was severely impacted by Panama disease in the 1950s, leading to its near extinction (Review) and replacement by the hardier Cavendish banana, which is the variety most widely consumed today.

While it's true that the artificial flavor closely mimics the Gros Michel, the notion that it tastes nothing like modern bananas because of an extinct variety isn't entirely accurate. Isoamyl acetate, the primary compound responsible for the distinct "banana" note, is also present in Cavendish bananas. The key difference lies in concentration and the balance of other volatile compounds that contribute to the overall flavor. Cavendish bananas have a more complex and often milder flavor profile compared to the Gros Michel's potent sweetness, and they contain lower concentrations of isoamyl acetate.

Therefore, the enduring belief in the extinct banana myth stems from a genuine historical shift in banana varieties and a noticeable difference in flavor perception. The artificial flavor, designed to evoke the intense taste of the once-ubiquitous Gros Michel, tastes distinct from the Cavendish bananas we've grown accustomed to. This creates a compelling, albeit slightly oversimplified, narrative that helps explain why our banana-flavored treats evoke a different sensation than the fruit (Review) itself.