A freshly delivered pizza can sometimes have small, raised bubbles across its melted cheese. Although these bumps may look unusual, they are generally a normal result of the cooking process. Understanding why they form can help explain what you are seeing when you open a pizza box.
For someone ordering pizza late at night, an unexpected detail can easily attract attention. But before assuming something is wrong with the food, it is worth considering the ordinary science behind how pizza cooks.
What Causes Bubbles to Form on Pizza Cheese?
Small bubbles can develop when pizza is exposed to the high temperatures of a commercial oven. As the cheese heats up, moisture and air trapped within or beneath it can expand, creating raised areas on the surface.
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