Salt is sprinkled on fruits to enhance their sweetness and reduce any bitterness or sourness, creating a more balanced and flavorful taste.
The reason salt works so well on fruit is due to a few different factors. First, salt can suppress our perception of bitterness. Many fruits contain compounds that contribute to a slightly bitter taste, and salt can effectively mask these flavors, allowing the sweeter notes to shine through. Second, salt can actually enhance the perception of sweetness. It does this by stimulating certain taste receptors on our tongue, making the fruit taste even sweeter than it normally would. Finally, salt can increase salivation. This extra saliva helps to distribute the flavors more evenly across the tongue, leading to a more intense and satisfying taste experience. The small amount of sodium chloride interacts with the fruit's natural sugars and acids, creating a more complex and enjoyable flavor profile. This is especially effective with fruits like watermelon, pineapple, and grapefruit.
Use a fine-grained salt, like sea salt or kosher salt, for sprinkling on fruit. Coarse salt can be too intense and may not dissolve evenly, leading to an overly salty bite.