Fancy decorated cakes, chocolates, ice cream cakes, gelatos, pastries, fruit pies, donuts, muffins, candies, and similar desserts, are all delicacies that are sold through their appetizing displays and visual appeal. Common lighting, however, is not ideal due to its limited color definition as well as the harmful effects it can have on dessert products, causing them to lose their color and alter their taste.
Professionals in the dessert industry know that desserts will change color when exposed to common light sources, a phenomenon known as photo oxidation. Also, desserts that contain fats such as shortening, vegetable oil, or milk fat, will suffer lipid oxidation which will negatively affect their smell, taste, and appearance. However, trying to protect such merchandise against damage from light by covering them or simply not displaying them reduces sales significantly as it affects impulse purchases.