Buying mozzarella and pizza cheese

Short answer

Match the cheese to the bake. Fresh mozzarella (fior di latte or buffalo) suits short, very hot bakes; low-moisture mozzarella suits domestic ovens and longer bakes, where it browns rather than weeps. Whole-milk low-moisture tastes richer and browns more but releases more oil; part-skim is leaner and oils less. Grating a block yourself usually melts more smoothly than pre-shredded cheese, though the difference is smaller than often claimed. Buffalo and DOP labels describe milk and origin, not suitability for your oven.

Fresh or low-moisture: the decision that matters most

In the US, mozzarella's standard of identity allows more than 52% and up to 60% moisture, while low-moisture mozzarella sits above 45% and up to 52%. That water difference drives behaviour in the oven: fresh mozzarella's water keeps its surface cool, so it stays white and soft and can release liquid; low-moisture mozzarella dries, browns and blisters. The cheese melt and oil release explainer covers the mechanism.

For a Neapolitan-style pizza baked in a minute or two at very high heat, fresh fior di latte or buffalo mozzarella has little time to weep and gives a milky, soft result. In a domestic oven, where a pizza bakes for several minutes, fresh mozzarella often leaves pools of liquid; low-moisture mozzarella is usually the easier choice, and the fresh versus low-moisture comparison sets out the trade-off. If you want fresh mozzarella at home, tear it, let it drain well and consider adding it partway through the bake.

Whole milk or part-skim

Whole-milk low-moisture mozzarella has more fat, which generally means a richer flavour, more browning and more oil released in a long bake. Part-skim versions have less fat in the solids, oil off less and brown more slowly; some people find them rubbery when overbaked. Many pizzerias and home cooks blend the two, or blend mozzarella with provolone for extra flavour.

If a pizza is greasy, especially with pepperoni adding its own fat, a part-skim cheese or a blend is a practical fix. If cheese stays pale in a domestic oven, whole milk usually helps.

Block or bag: shredding and anti-caking agents

Pre-shredded cheese is coated with an anti-caking agent — commonly cellulose or a starch such as potato starch — to stop shreds clumping. Kitchen testers often find block cheese grated at home melts more smoothly and tastes better. The laboratory evidence is thin and points somewhere slightly different: one master's thesis on shredded mozzarella found starch-based anti-caking agents increased browning compared with cellulose or untreated cheese, which its author attributes to the starch slowing moisture loss, so the surface was cooled less by evaporation and ran hotter. How much any of this matters on a home pizza has not been well studied, and convenience can reasonably win.

Shred size also matters. Fine shreds melt fast and can over-brown or oil off in a long bake; larger shreds, cubes or slices melt more slowly and suit longer bakes and pan pizzas such as Detroit, which often use cubed cheese pushed to the edge.

Buffalo, DOP and other pizza cheeses

Buffalo mozzarella is made from water-buffalo milk; it is richer and often wetter than cow's-milk fior di latte. Some buffalo mozzarella carries a PDO, which protects its origin and method rather than certifying better performance on pizza. On a home-oven pizza its extra moisture is usually a disadvantage; many cooks add it after baking instead.

Other cheeses play defined roles. Provolone adds a sharper, more savoury flavour and blends well with mozzarella. Brick cheese is traditional on Detroit-style pizza and browns into a crisp edge. Cheddar melts but tends to pool and oil rather than stretch, so it usually works better in a blend than alone. Hard cheeses such as Pecorino Romano and Parmigiano Reggiano are seasonings rather than melting cheeses. Each has its own cheese profile.

What to look for

• Moisture: fresh or low-moisture

  Water content decides whether cheese weeps and stays pale or dries and browns, which is the biggest factor in matching cheese to oven.

  Check: The name ('low-moisture' or fresh, packed in liquid). Fresh for very hot, short bakes; low-moisture for domestic ovens and longer bakes.

• Fat: whole milk or part-skim

  More fat gives richer flavour and more browning but more oil release.

  Check: 'Whole milk' or 'part-skim' on the label and the fat figure. Blend if one alone is too greasy or too lean.

• Block or pre-shredded

  Anti-caking coatings and fine shreds can change melt and browning.

  Check: Ingredients for cellulose or starch. Grate a block where melt matters; pre-shredded is acceptable where convenience matters.

• Shred or cut size

  Smaller pieces melt and brown faster; larger pieces suit long bakes and pan pizzas.

  Check: Choose cubes or coarse shreds for long bakes, finer shreds or torn pieces for short ones.

Sold harder than it matters

• Buffalo milk or a DOP/PDO label. A PDO protects origin and method, not performance on pizza. Buffalo mozzarella's extra moisture usually makes a domestic-oven pizza wetter, where a low-moisture cow's-milk mozzarella generally behaves better.

PizzaHQ does not test, rank or recommend cheese brands. This guide explains how moisture, fat and format change behaviour on a pizza, using public standards, published testing and dairy science; it does not reflect any product PizzaHQ has baked.

Common misconceptions

“Fresh mozzarella is always the better pizza cheese.”

It suits very hot, short bakes. In a domestic oven it often releases water and stays pale, where low-moisture mozzarella generally does better.

“Pre-shredded cheese will not melt.”

It melts; anti-caking agents can make the melt less smooth and change browning, but the effect varies and is often modest.

“Greasy pizza means poor-quality cheese.”

Fat content, shred size, bake length and fatty toppings matter more. A good whole-milk cheese can oil off heavily in a long bake.

What this page cannot tell you

Cheese varies by producer and batch, and moisture and fat definitions differ by country; the moisture ranges quoted are from US standards. Anti-caking agents vary, and the research on them is limited. PizzaHQ has not baked or measured any cheese.

Related

Evidence

• 21 CFR 133.155 — Mozzarella cheese and scamorza cheese — US Food and Drug Administration (via Cornell Legal Information Institute)
• 21 CFR 133.156 — Low-moisture mozzarella and scamorza cheese — US Food and Drug Administration (via Cornell Legal Information Institute)
• Invited Review: Perspectives on the Basis of the Rheology and Texture Properties of Cheese — Journal of Dairy Science, vol. 86, no. 9, pp. 2725–2743
• The best cheese for pizza — King Arthur Baking Company
• Effects of Starch-Based Anti-Caking Agents on Browning of Shredded Mozzarella Cheese — Virginia Tech (master's thesis, VTechWorks)
• Geographical indications and quality schemes explained — European Commission, Directorate-General for Agriculture and Rural Development