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

A Strange Appearance With a Simple Explanation

What initially looked unusual turned out to be one of the ordinary things that can happen when pizza is baked.

Those little bubbles aren’t necessarily something to worry about. In many cases, they’re simply evidence of the interaction between cheese, moisture, and intense heat.

So the next time you open a pizza box and notice bubbly cheese, don’t immediately assume something is wrong.