Shredded mozzarella cheese

One US cup of shredded mozzarella cheese weighs between 86 and 113 grams (3 to 4 ounces), depending on how the cup is filled and which source measured it. That range is the answer; a single number would not be. Every figure behind it is below, with the method each source used.

Shredded, grated and crumbled cheese compared: cup weights side by side, the source behind each, and why they differ.

Shredded mozzarella cup weight depends on which variety and how it is measured. USDA measures low-moisture part-skim (LMPS) shreds at 86 g/cup and whole milk shreds at 112 g/cup — a 30% gap. Retail bags predominantly contain LMPS (pizza cheese) but their nutrition labels report the FDA convention of 28g per 1/4 cup, implying 112 g/cup density regardless of variety.

Mozzarella (Italian mozzare, to cut) is a soft cow's-milk or water-buffalo cheese made by the pasta filata process — stretching and kneading fresh curds in hot water. Three retail forms differ substantially in composition and behavior. Fresh mozzarella (packed in water or brine, ~52% moisture) is very soft and rarely shredded. Low-moisture part-skim (LMPS) is the standard pizza cheese in US retail, made from partially skimmed milk and dried to ~48% moisture, firm enough to shred cleanly on a box grater or commercial machine. Whole milk mozzarella (low-moisture) has higher fat, moderate firmness, and is common in premium shredded blends.

USDA SR Legacy publishes distinct records for both retail-shred forms. "Cheese, mozzarella, low moisture, part-skim, shredded" (FDC 170900) shows 1 cup shredded = 86 g, density 0.363 g/mL. "Cheese, mozzarella, whole milk" (FDC 170845) shows 1 cup shredded = 112 g, density 0.473 g/mL. The 30% density gap reflects physical differences: LMPS shreds are drier and stringier, packing with substantially more air space than whole-milk shreds which are moister and tackier.

Retail producer labels all report the FDA nutrition-label convention: 1 oz = 28 g = 1/4 cup, which extrapolates to 112 g/cup. This figure holds regardless of whether the product inside is LMPS, whole milk, or a blend — Sargento LMPS, Great Value LMPS, Wegmans LMPS, Happy Farms LMPS, Lidl LMPS, Kraft LMPS, and Costco LMPS all use this exact serving convention. Whether this reflects real packed-cup density or a legal serving-size approximation is not documented publicly. Home cooks measuring 1 cup of LMPS shreds by loose scooping typically get closer to 85-90 g, matching USDA's laboratory measurement.

King Arthur's ingredient weight chart groups mozzarella with cheddar, jack, and Swiss at 1 cup = 4 oz = 113 g. This figure is accurate for cheddar (USDA agrees at 113) and whole milk mozzarella (USDA at 112) but overstates LMPS shredded mozzarella by 30%. It is a scope error — KA generalizes a shredded semi-hard cheese density that fits some cheeses and not others.

For validation and internal consistency, this entry withholds a single figure and publishes the observed range 86-112 g/cup. The 31% spread reflects real variance between LMPS and whole milk shredded mozzarella, both sold under the shredded mozzarella name.

Practical guidance: for pizza applications (topping, blends, calzones, stuffed crust), the LMPS density of ~86 g/cup is closest to reality — retail pizza cheese behaves this way. For baking and pasta applications where whole milk mozzarella is preferred (lasagna, baked ziti, fresh pizza on artisan crusts), the whole milk density of ~112 g/cup applies. When a recipe simply says "shredded mozzarella" without specifying, LMPS is the default in US kitchens; use ~90 g/cup as a working estimate. When comparing to shredded cheddar cheese entry (113 g/cup, high-confidence single figure), note that mozzarella is genuinely lighter per cup due to moisture and fat differences that affect shred packing behavior.