Can I Eat Expired Opened Packaged Mozzarella?

Safe up to 7 days after expirationLast updated: 3/30/2025

Safe to eat up to 7 days after expiry

Medium Risk❄️ Can be frozen

Expert Source

"Once opened, mozzarella should be refrigerated and used within 3 to 5 days for best quality." - USDA

Fresh Opened Packaged Mozzarella

Fresh Opened Packaged Mozzarella

⚠️Spoiled Opened Packaged Mozzarella

Spoiled Opened Packaged Mozzarella
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Storage Guidelines

Storage Location

Fridge

Ideal Temperature

34-40°F (1-4°C)

Best Storage Method

Keep in original package or wrap tightly. Store in cheese drawer. Maintain consistent temperature.

Shelf Life

Average Shelf Life

14 days

Extended Shelf Life (When Frozen)

60 days

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Signs of Spoilage

Mold growth, unusual odor, slimy texture, discoloration

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Additional Information

Alternative Uses

Pizza topping, melting, cooking

Possible Substitutions

Provolone, mild cheese, fresh mozzarella

Frequently Asked Questions

What's the difference between expiration and best quality dates for Opened Packaged Mozzarella?

The expiration date on packaged mozzarella indicates the date until which the cheese is expected to remain safe for consumption. Beyond this date, there is a higher risk of spoilage and microbial growth. However, the 'best quality' or 'use by' date refers to the period during which the mozzarella is at its peak flavor and texture. While consuming mozzarella after the expiration date may not always pose an immediate health risk if stored correctly, its quality may deteriorate over time.

How can I tell if Opened Packaged Mozzarella has gone bad?

To determine if opened packaged mozzarella has gone bad, check for any mold growth on the surface, a sour or off smell, and a slimy or discolored texture. If you notice any of these signs, it's best to discard the mozzarella to avoid consuming spoiled food.

What are the food safety risks with Opened Packaged Mozzarella?

Opened packaged mozzarella, like other dairy products, is susceptible to contamination by harmful bacteria such as Listeria monocytogenes if not stored properly. Consuming contaminated mozzarella can lead to foodborne illnesses, especially for individuals with weakened immune systems, pregnant women, and the elderly. It is crucial to refrigerate opened mozzarella promptly and follow proper storage guidelines to prevent bacterial growth.

What are some pro tips for storing Opened Packaged Mozzarella?

To maintain the freshness and quality of opened packaged mozzarella, store it in its original packaging or transfer it to an airtight container or resealable plastic bag. Keep the cheese refrigerated at a temperature of around 40°F (4°C) to slow down bacterial growth and preserve its texture. Avoid storing mozzarella near foods with strong odors, as it can absorb flavors easily. If the mozzarella develops mold or an off smell, discard it to prevent foodborne illness.

Any interesting facts about Opened Packaged Mozzarella?

Mozzarella, a traditional Italian cheese, holds cultural significance in Italian cuisine. It is a key ingredient in popular dishes like Caprese salad, Margherita pizza, and lasagna. The term 'mozzarella' is derived from the Italian word 'mozzare,' which means 'to cut off,' referring to the way the cheese is traditionally made by hand-stretching curd and cutting it into small balls. In Italy, mozzarella di bufala, made from buffalo milk, is highly prized for its rich, creamy flavor.

Expiration Calculator

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Sources

For more information on food safety and expiration guidelines, visit our Sources page.

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Recipes Available

We have recipes that can help you safely use opened packaged mozzarella past its expiration date!

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Reviewed By: Food Safety & Expiration Experts

At Can I Eat Expired, we are committed to providing accurate, science-backed information about food expiration and storage safety. Our content is carefully reviewed based on guidelines from leading food safety organizations, including:

🔍 How We Ensure Accuracy

  • We use official food safety sources to guide our recommendations.
  • Our team continuously reviews and updates content based on the latest research.
  • We encourage users to always check for signs of spoilage and follow proper storage guidelines.

📚 Have Questions?

If you have specific concerns about food expiration or safety, we recommend consulting a registered dietitian, food scientist, or your local health department.

Note: These are general guidelines. Always use your best judgment and when in doubt, throw it out.