How Long Does Mozzarella Cheese Last in the Fridge Before It Goes Bad?

AvatarByTonya Taylor Processing & Storage

Mozzarella cheese, with its creamy texture and mild flavor, is a beloved staple in many kitchens around the world. Whether melted atop a pizza, layered in a fresh Caprese salad, or simply enjoyed on its own, mozzarella adds a delicious touch to countless dishes. But once you bring this fresh cheese home, a common question arises: how long does mozzarella cheese last in the fridge?

Understanding the shelf life of mozzarella is essential not only for maintaining its best taste and texture but also for ensuring food safety. Factors such as the type of mozzarella, packaging, and storage conditions all play a role in determining how long it stays fresh. Navigating these variables can help you avoid waste and enjoy your cheese at its peak.

In the following sections, we’ll explore the typical fridge lifespan of different kinds of mozzarella, signs to watch for when your cheese is no longer good, and tips on how to store it properly. Whether you’re a casual cheese lover or a culinary enthusiast, knowing how to handle mozzarella will elevate your kitchen confidence and keep your meals delicious.

Storage Tips to Maximize Mozzarella Cheese Freshness

Proper storage is essential to extend the shelf life of mozzarella cheese and maintain its quality. Fresh mozzarella, especially the kind packed in liquid, requires more careful handling than harder, aged varieties.

To preserve freshness:

  • Keep it refrigerated at all times, ideally at a temperature between 34°F and 40°F (1°C to 4°C).
  • Store in original liquid if it is fresh mozzarella packed in brine or whey. Replace the liquid every couple of days if possible to prevent spoilage.
  • Use airtight containers or resealable plastic bags to minimize exposure to air and reduce moisture loss for mozzarella that is not packed in liquid.
  • Avoid cross-contamination by using clean utensils when handling the cheese and keeping it separate from other foods, especially those with strong odors.
  • Label the container with the date of opening to track freshness accurately.

For shredded or sliced mozzarella, storing in an airtight container with a lightly damp paper towel can help maintain moisture without making the cheese soggy.

Signs That Mozzarella Cheese Has Spoiled

Even with proper storage, mozzarella cheese will eventually spoil. Recognizing the signs of spoilage is crucial to avoid consuming unsafe food.

Key indicators include:

  • Sour or off smell: Fresh mozzarella has a mild, milky aroma. A sour or ammonia-like odor indicates bacterial growth.
  • Discoloration: Any yellowing, pink, or gray hues suggest spoilage or mold development.
  • Texture changes: Sliminess or an excessively dry, crumbly texture are warning signs. Fresh mozzarella should be moist but firm.
  • Visible mold: White or green fuzzy spots are mold growth and mean the cheese should be discarded.
  • Off taste: If the cheese tastes sour or bitter, it is no longer good to consume.

If any of these signs are present, it is safest to discard the mozzarella to prevent foodborne illness.

Comparing Shelf Life of Different Types of Mozzarella

The shelf life of mozzarella cheese varies depending on its form and packaging. Below is a comparison table illustrating typical fridge storage durations for common mozzarella types:

Type of Mozzarella Storage Method Unopened Shelf Life (Refrigerated) Opened Shelf Life (Refrigerated)
Fresh Mozzarella (packed in liquid) In original liquid, airtight container Up to 2 weeks (check expiration date) 3 to 5 days
Fresh Mozzarella (without liquid) Airtight container with damp paper towel Up to 1 week 3 to 4 days
Shredded Mozzarella Airtight plastic bag or container Up to 1 week 5 to 7 days
Block Mozzarella (aged or low moisture) Wrapped tightly in plastic wrap or foil Up to 3 weeks 7 to 10 days

Understanding these timelines helps in planning usage and ensuring mozzarella cheese is consumed while still fresh and safe.

Best Practices for Freezing Mozzarella Cheese

Freezing mozzarella cheese is an option if you want to extend its shelf life beyond refrigeration. However, freezing can alter the texture, making it more crumbly and less suitable for fresh applications like salads.

Tips for freezing mozzarella:

  • Use only mozzarella that is close to its expiration date or you do not plan to use soon.
  • Freeze in small portions to avoid thawing and refreezing, which accelerates quality loss.
  • Wrap tightly in plastic wrap or aluminum foil, then place in a freezer-safe airtight container or bag to prevent freezer burn.
  • Label packages with the freezing date for reference.

When thawing frozen mozzarella, do so slowly in the refrigerator rather than at room temperature to minimize texture changes and bacterial growth.

Generally, mozzarella can be frozen for:

  • Up to 3 months for fresh mozzarella
  • Up to 6 months for shredded or block mozzarella

After thawing, it is best used in cooked dishes such as pizzas, casseroles, or sauces where texture changes are less noticeable.

Storage Duration of Mozzarella Cheese in the Refrigerator

Mozzarella cheese, when stored properly in the refrigerator, has a defined shelf life that varies depending on its form—fresh, shredded, or pre-packaged. Understanding these differences is crucial for maintaining quality and safety.

Fresh Mozzarella: This type is typically sold in water or brine and is highly perishable. Once opened, it should be consumed quickly.

  • Unopened fresh mozzarella: Can last up to 1-2 weeks past the printed date if refrigerated consistently at or below 40°F (4°C).
  • Opened fresh mozzarella: Best consumed within 3-4 days when stored in its original liquid or sealed airtight container.

Shredded Mozzarella: This variety has a longer shelf life due to its lower moisture content and packaging methods.

  • Unopened shredded mozzarella: Typically lasts 1-2 weeks past the sell-by date when refrigerated properly.
  • Opened shredded mozzarella: Should be used within 5-7 days for optimal freshness.

Pre-Packaged or Block Mozzarella: Similar guidelines apply here, depending on moisture content and packaging integrity.

  • Unopened block mozzarella: Can last 2-3 weeks past the sell-by date refrigerated.
  • Opened block mozzarella: Best consumed within 1 week once cut and stored in an airtight container or wrapped tightly.
Mozzarella Type Unopened Storage Duration Opened Storage Duration Recommended Storage Temperature
Fresh Mozzarella 1-2 weeks past printed date 3-4 days in original liquid, airtight container ≤ 40°F (4°C)
Shredded Mozzarella 1-2 weeks past sell-by date 5-7 days in airtight container ≤ 40°F (4°C)
Block/Pre-Packaged Mozzarella 2-3 weeks past sell-by date Up to 1 week wrapped tightly ≤ 40°F (4°C)

Consistent refrigeration and proper airtight storage are essential to maximize mozzarella cheese’s shelf life and prevent spoilage. Always check for signs of spoilage such as off odors, discoloration, or mold before consumption.

Expert Insights on Mozzarella Cheese Shelf Life in Refrigeration

Dr. Emily Grant (Food Microbiologist, Dairy Research Institute). “Fresh mozzarella cheese typically lasts about 5 to 7 days in the refrigerator when stored properly in its original packaging or submerged in water. Beyond this period, the risk of bacterial growth increases, which can compromise both safety and flavor.”

James O’Connor (Certified Cheese Affineur and Dairy Specialist). “The moisture content in mozzarella makes it more perishable compared to aged cheeses. For optimal freshness, it should be consumed within a week after opening, and always kept tightly sealed to prevent exposure to air and contamination.”

Lisa Hernandez (Registered Dietitian and Food Safety Consultant). “When stored in the fridge at or below 40°F (4°C), mozzarella cheese can remain safe to eat for up to one week after opening. However, it is crucial to inspect for signs of spoilage such as off-odors, discoloration, or slimy texture before consumption.”

Frequently Asked Questions (FAQs)

How long does fresh mozzarella cheese last in the fridge?
Fresh mozzarella typically lasts 3 to 5 days when stored properly in its original liquid or airtight container in the refrigerator.

Can shredded mozzarella cheese last longer than fresh mozzarella?
Yes, shredded mozzarella usually lasts about 1 to 2 weeks in the fridge if kept in a sealed container or resealable bag.

What is the best way to store mozzarella cheese to extend its shelf life?
Store mozzarella in an airtight container or tightly wrapped in plastic wrap, and keep it refrigerated at or below 40°F (4°C). For fresh mozzarella, keep it submerged in its brine or water.

How can I tell if mozzarella cheese has gone bad?
Signs of spoilage include an off smell, discoloration, slimy texture, or mold growth. If any of these are present, discard the cheese immediately.

Is it safe to eat mozzarella cheese past its expiration date?
Consuming mozzarella past the expiration date is not recommended, especially if there are signs of spoilage. Always rely on sensory checks and proper storage conditions.

Can mozzarella cheese be frozen to extend its shelf life?
Yes, mozzarella can be frozen for up to 2 months, but freezing may alter its texture, making it crumbly and less suitable for fresh use. Use frozen mozzarella primarily for cooking.
mozzarella cheese typically lasts between one to two weeks in the refrigerator when stored properly. Fresh mozzarella has a shorter shelf life, generally lasting about 3 to 7 days, while low-moisture mozzarella can remain fresh for up to two weeks or slightly longer if unopened. Proper storage, such as keeping the cheese in its original packaging or an airtight container and maintaining a consistent refrigerator temperature, is crucial to preserving its quality and preventing spoilage.

It is important to regularly check mozzarella for signs of spoilage, including changes in texture, color, or odor. Discoloration, mold growth, and an off smell are clear indicators that the cheese should be discarded. Additionally, using mozzarella within the recommended time frame not only ensures optimal taste and texture but also reduces the risk of foodborne illness.

Overall, understanding the storage requirements and shelf life of mozzarella cheese helps consumers maximize its freshness and safety. By adhering to proper refrigeration practices and monitoring the cheese’s condition, one can enjoy mozzarella at its best quality for a reasonable period after purchase.

Author Profile

Tonya Taylor
Tonya Taylor
I’m Tonya Taylor, the founder of New Market Dairy. I grew up in a rural dairy community where milk, fresh curds, and home prepared foods were part of everyday life, which naturally shaped my curiosity about dairy. With a background in nutritional sciences and years spent writing about food, I focus on explaining dairy in a clear, practical way.

I started New Market Dairy in 2025 to explore the questions people genuinely ask about dairy, from intolerance and alternatives to everyday kitchen use. My goal is to share balanced, easy to understand insights that help readers feel confident and comfortable with their choices.