I Ordered a Pizza in the Evening—and Noticed Something Strange

When I opened my pizza box that evening, something immediately caught my attention.

The cheese wasn’t perfectly smooth. Instead, it was covered with small bubbles and slightly raised spots. At first, I wondered whether something had gone wrong during cooking.

But the strange-looking surface actually has a simple explanation.

Why Does Pizza Cheese Bubble?

The bubbles are usually caused by a combination of moisture, heat, and the type of cheese used. As the pizza cooks, moisture inside the cheese turns