Because its moisture content is lower, it may create fewer watery areas. However, it can still form bubbles when heated, especially at high temperatures.
The age and composition of the cheese also matter.
As cheese matures, its proteins undergo changes through a process known as proteolysis. This involves the breakdown of proteins into smaller peptides and amino acids. These changes affect flavor, texture, and melting behavior.
A very young cheese and an aged cheese may therefore react differently in the oven, even if they come from the same basic milk source.
Cheddar is another interesting example.
When used alone, cheddar may not produce the same stretchy texture as mozzarella. Depending on its age and formulation, it can release more oil during heating and may become greasy if exposed to excessive temperatures.
Provolone is often used alongside mozzarella because it contributes a different flavor while still melting well.
Parmesan behaves differently again. It is typically used as a finishing cheese or mixed with other cheeses. Because it is relatively dry and aged, it does not melt into the same smooth, stretchy layer as mozzarella.
A blend of cheeses can therefore create a more complex surface, with different areas melting and browning at different rates.
Processed pizza cheeses may also contain emulsifying salts or other ingredients designed to improve melting behavior. These ingredients help stabilize the relationship between fat, water, and proteins, potentially reducing excessive oil separation.
The way cheese is shredded or sliced can make a difference, too.
Finely shredded cheese has a greater exposed surface area relative to its volume than large chunks. It can melt more quickly and spread more evenly. Thick slices or large pieces may take longer to soften and can create more noticeable differences between their centers and edges.
The amount of cheese matters as well.
A thick layer may trap more moisture and create larger pockets as it heats. A thinner layer may release moisture more easily, although it can also dry out faster and become overbrowned.
Even the temperature of the cheese before baking can influence the cooking process. Cheese taken directly from the refrigerator may heat differently from cheese that has been allowed to lose some of its chill.
None of these differences necessarily indicates a problem. They are simply examples of how food composition influences cooking behavior.
This is also why a pizza made at home may look different from one prepared in a professional restaurant oven. The type of cheese, the amount used, the oven temperature, and the cooking time all contribute to the final result.
Understanding these factors can help explain why some pizzas have tiny, delicate bubbles while others develop large, dramatic golden blisters.
But there is still one more mystery: can you actually control how much the cheese bubbles? And if you prefer a smoother surface, are there practical ways to achieve it without sacrificing flavor?
Chapter 5: How to Get the Perfect Pizza Cheese — More Bubbles or a Smoother Melt?
Once you understand why cheese bubbles, you can begin to influence the final appearance of your pizza.
Some people love large golden blisters. They enjoy the contrast between the soft cheese underneath and the slightly toasted surface. Others prefer a smooth, evenly melted layer without prominent raised areas.
Both styles can be delicious, and neither is automatically better.
The first factor to consider is the type of cheese.
If you want a relatively consistent melt, low-moisture mozzarella is often a reliable choice. It is widely used for pizza because it provides good melting properties without releasing as much water as fresh mozzarella.
If you prefer fresh mozzarella, take a little extra time to drain it. Remove excess liquid and gently pat the cheese dry with a clean paper towel. This helps prevent unnecessary moisture from collecting on the pizza.
The second factor is the amount of cheese.
Adding too much cheese may seem like an easy way to create a richer pizza, but an excessively thick layer can lead to uneven heating. Some sections may remain soft and moist while others become heavily browned.
A moderate, evenly distributed layer usually produces more predictable results.
The third factor is oven temperature.
Pizza is traditionally cooked at high temperatures, but the ideal temperature depends on the oven, the dough, and the type of pizza being prepared. A home oven and a professional pizza oven behave very differently.