How long does Fresh Mozzarella (in Water / Opened) last?
Storage guidance for Fresh Mozzarella (in Water / Opened): Follow the package directions. Plus warning signs, sources, and package instructions.
Quick answer
Can I still eat it?
This food cannot be judged from a generic day count. Follow its after-opening storage directions and product-specific package guidance.
Discard it when the label directs, if the package is damaged, or if any warning sign below applies.
Sealed / unopened: Follow the package use-by date
Signs Fresh Mozzarella (in Water / Opened) has gone bad
- Sour, yeasty, or rancid milk smell.
- Slime on the cheese or a discolored coating.
- Cloudy or bubbling packing liquid.
Discard immediately if
- Any visible mold (fresh soft cheese cannot be salvaged by cutting away mold)
- Sour, yeasty, or fermented odor
- Left at room temperature (40–140°F) for more than 2 hours (1 hour if temperature is above 90°F / 32°C)
- The package use-by or after-opening limit has passed
Why guidance varies
Fresh mozzarella is a high-moisture soft cheese; formulation, packing liquid, processing, and the product-specific label determine its opened life.
Get a heads-up before it expires. Search the full database instead.
Frequently asked questions
How long does Fresh Mozzarella (in Water / Opened) last?
Package guidance: Keep at 40°F (4°C) or below and follow the package use-by and after-opening directions; use promptly after opening. Sealed / unopened: Follow the package use-by date. Keep pasteurized fresh mozzarella refrigerated in its original packing liquid and tightly covered. Products and package instructions vary, so this page does not publish one generic opened-day limit.
How can you tell if Fresh Mozzarella (in Water / Opened) has gone bad?
Signs that Fresh Mozzarella (in Water / Opened) has gone bad: Sour, yeasty, or rancid milk smell; Slime on the cheese or a discolored coating; Cloudy or bubbling packing liquid.
What does the date label on Fresh Mozzarella (in Water / Opened) mean?
Fresh Mozzarella (in Water / Opened) usually carries a "Use By" date. The last date the manufacturer recommends for peak quality — for most foods this is still quality-based, not a safety cutoff (infant formula is the one exception). See our date-labels guide for the full breakdown.
Sources for this answer
- A FoodSafety.gov — Listeria — Pasteurized mozzarella is a lower-risk cheese choice, but refrigerated ready-to-eat foods still require careful handling.
- A FDA — Are You Storing Food Safely? — Keep refrigerated foods at 40°F or below and follow product storage directions.