Chocolate, bread, and potatoes are among the foods that should not be stored in the refrigerator, according to a Martha Stewart website publication on home food preservation. The cold can alter the texture and appearance of these foods, making them less appealing, although it does not necessarily mean they are spoiled.
In the case of chocolate, refrigeration can cause the phenomenon known as bloom, a whitish layer formed by sugar that rises to the surface. This visual change does not affect the flavor, but it can make the product less attractive. The recommendation is to store chocolate in a tightly closed container, in a cool and dry environment. However, Ann Ziata, a chef and culinary instructor, acknowledges that on very hot days, when there is no suitable place where it won't risk melting, the refrigerator can be used, provided the chocolate is in an airtight container.
As for whole or peeled potatoes, the guidance is to store them in a dark, cool, and well-ventilated space, such as a pantry. The cold transforms starch into sugar, which can alter the flavor and texture after cooking. Oregon State University identifies possible quality changes in raw refrigerated potatoes, although it does not state that it is dangerous.
Regarding bread, refrigeration accelerates its aging and causes it to lose freshness more quickly. Ann Ziata recommends a cool and dry space for bread that will be consumed soon. When the goal is to preserve bread for later, the same university suggests freezing as an alternative to refrigeration, allowing the food to be stored for longer.
