Why are Some Bananas Sweeter than Others

Some bananas are sweeter than others.
Cavendish Bananas – Image: Steve Hopson, www.stevehopson.com

Some bananas are sweeter than others. How is that?

Having purchased the golden fruit many times, I asked myself, why are some bananas sweeter than others?

You pick up a bunch of small, curly, bright yellow fruits.¹ You take them home. On the way, you remove the one with the label. You peel it most of the way down. With a few quick bites, you finish it off.

The next time you go shopping, the display features large, straight bananas. Eventually you note that some of them are sweeter and more flavorful. They are not so starchy.

Banana Varieties

Each variety of banana is grown for a specific end use. Some (plantains) are fried in a skillet. They are starchy. Others are raised for sweetness and aroma. Those are called dessert bananas. The most popular form of dessert banana is the Cavendish.

Processing the Cavendish Banana

Bananas do not grow on trees. They are herbaceous plants. Oddly, the banana is considered a berry. The dessert banana is harvested in the mature green state. After shipping, they are ripened using ethylene gas.² This is performed in rooms that feature controlled humidity. This turns the bananas bright yellow. If temperatures are low, they take on a gray tinge. This results in an inferior product.

Some Bananas are Sweeter

Since the U.S. banana found in most stores most commonly is the Cavendish, what makes the sweetness and flavor of one batch better than another?

Flavor and Sunlight

First, some of the tropical fruits are much more curved than others. This is because they reach toward the sun. Since sunlight is part of the maturing and ripening process, this could account for a marginal increase in sugar content and resulting fruit sweetness.

The Primary Factor

Most of the ripening does not occur on the plant. The bulk of the variance in color, flavor, sweetness, and texture comes from the processing at its ship-to location. Yes, some are sweeter than others.

  1. Here we discuss the classic dessert banana.
  2. The fruit naturally produces ethylene gas. It would be unfair to assert the commercial process is artificial.

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