Most commonly, what you’re seeing are pockets of steam and fat forming beneath the surface as the pizza bakes. Food
Here’s how it happens:
When pizza is exposed to high heat, several things occur simultaneously. The water content in the dough, sauce, and cheese begins to evaporate, creating steam. At the same time, fats in the cheese start to melt and separate. If the surface layer of cheese melts quickly and forms a kind of seal, that steam can get trapped underneath.
Discover more
foods
Celebrities & Entertainment News
celebrity
The result? A bubble.
These bubbles can vary in size depending on factors like oven temperature, baking time, and how evenly the ingredients are distributed. In high-heat environments—like pizza ovens or very hot home ovens—this effect becomes even more pronounced.
Why Some Pizzas Bubble More Than Others
Not all pizzas behave the same way, and that’s part of what makes this phenomenon so noticeable when it does happen.