Why Your Pan Pizza has White Pockets/”Bubbles” on the Bottom [Causes & Solutions]
White pockets on the bottom of a pan pizza are uncolored ‘bubbles’ where the dough failed to brown, resulting in an uneven appearance and a lack of consistent crispness. This issue is mostly a result of air being trapped between the dough and the pan during stretching, preventing direct heat contact. This page details the exact causes and provides actionable solutions for achieving a perfectly uniform, browned bottom every time
This page is part of PizzaBlab’s Pizza Making Troubleshooting Guide. It provides a practical overview of the most common causes for this problem, each with a brief explanation, actionable solution, and links to related articles for deeper understanding.
The sections are listed from most to least likely, meaning the first cause typically represents the most common reason for this issue, with likelihood decreasing as you move down the list. That said, several causes can often overlap or share similar likelihoods – it’s ultimately up to your process to identify which factors are at play.
Cause 1: Air Pockets Trapped at the Bottom During Pan Stretching
Explanation:
When stretching the dough in a pan, air pockets can become trapped between the dough and the pan. These pockets remain raised during baking, resulting in large white areas on the bottom of the pizza.
Solution:
Press out any air pockets when stretching the dough into the pan, ensuring the bottom surface is smooth and even.
Additional Notes / Information
Higher-hydration doughs tend to show this more strongly, as their greater extensibility encourages large bubble formation.
These pockets are not necessarily a “problem,” but some people prefer a smoother, more uniform crust.
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