Mozzarella made from pasteurized milk is considered safe during pregnancy. Most commercial mozzarella in the US — including shredded, sliced, and string cheese — is pasteurized. Fresh mozzarella (the soft, water-packed balls) is also typically pasteurized in commercial brands but verify the label.
Key Takeaway: Packaged/shredded mozzarella is almost always pasteurized and considered safe. Fresh mozzarella from commercial brands is usually pasteurized — check the label. Fresh mozzarella from artisanal producers or Italian imports may be unpasteurized. When in doubt, mozzarella on pizza is always safe (melted at high temperature).
Mozzarella on pizza, in baked pasta, on bruschetta — all considered safe when using pasteurized cheese. The cooking process adds an additional safety layer by killing any bacteria present.
For the complete cheese safety guide, see soft cheese during pregnancy.
Bottom Line: Pasteurized mozzarella = considered safe in all preparations. Check labels on fresh mozzarella. Melted/baked mozzarella = safe regardless of pasteurization status.