How Long Does Tomato Paste Last? Understanding Its Shelf Life

Have you ever wondered: how long does tomato paste last? Maybe you're staring at a can that's been in your pantry for months, or you're uncertain about using one that's already been opened.

Knowing how long tomato paste lasts is crucial for maintaining both safety and quality in your cooking. In this guide, JOLION Foods will explore its shelf life, proper storage methods, signs of spoilage, and answer common questions for you!

How Long Does Tomato Paste Last? Unopened vs. Opened

1. Shelf Life of Unopened Tomato Paste

An unopened can or tube of tomato paste has a long shelf life, typically lasting 1-2 years past the best-by or expiration date printed on the packaging. This is due to two key reasons: first, the paste is a low-moisture, highly acidic product; second, the hermetically sealed container prevents exposure to air and bacteria.

As long as the container is in good condition, with no signs of dents, bulges, or rust, the paste inside should remain safe to use for quite some time.

2. How Long Does Tomato Paste Last After Opening?

Once opened, tomato paste is exposed to air, moisture, and potential contaminants, which can significantly shorten its shelf life. In the fridge, opened tomato paste usually lasts about 5-7 days. For the best results, you may transfer the leftover tomato paste to an airtight container and store it in the refrigerator or freezer, which we’ll explain in more detail below!

How to Store Tomato Paste Properly

1. Ideal Storage Conditions Before Opening

For an unopened can or tube, it is recommended to store it in a cool, dark place like a pantry or cupboard. This protects it from extreme temperature fluctuations and direct sunlight, which can degrade the product's quality over time. Avoid storing it near the stove or in a hot garage.

2. Proper Storage After Opening

After opening, refrigeration is key. You can try covering the top of the can with plastic wrap. Or you can transfer the paste to an airtight glass or plastic container with a tight-fitting lid. The minimized air exposure can help keep the paste fresh for about 5-7 days.

3. Freezing Tomato Paste: How to Do It and How Long It Lasts

Freezing is the most effective way for long-term storage and is a great solution for anyone who doesn’t use tomato paste frequently. Here is an easy process to follow.

• Portion it out: Use a teaspoon or tablespoon to scoop the paste into small portions on a parchment-lined baking sheet.

• Flash freeze: Place the baking sheet in the freezer for about an hour until the portions are solid.

• Transfer: Move the frozen tomato paste "pucks" into a freezer-safe bag or container.

• Label: Don't forget to label the bag with the date.

Frozen tomato paste can last for 6 months to 1 year. When you need some for a recipe, simply grab a "puck" and drop it directly into your pot.

How to Tell If Tomato Paste Has Gone Bad

When you see the following signs, you can just throw the paste out.  

1. Mold

Any visible mold, whether white, green, or black, indicates that the paste should be discarded immediately. Do not attempt to scrape off the moldy portion; the microscopic spores can penetrate the entire product.

2. Discoloration

Healthy tomato paste is a vibrant, deep red. It can naturally darken slightly over time, but unusual or uneven discoloration may indicate oxidation and bacterial growth.

3. Texture Changes

Fresh tomato paste is thick and smooth. If it has become watery, separated, or developed a hardened, crusty layer on top, it's a strong indicator that it has gone bad.

4. Smell Changes

A good tomato paste has a sweet, earthy, and slightly acidic smell. An off, sour, or fermented odor is a definite sign that it has spoiled. When in doubt, always give it a sniff test.

FAQs About Tomato Paste Shelf Life

1. How long does tomato paste last in the fridge?

Opened tomato paste can typically last for about 5-7 days in the refrigerator if kept in an airtight container.

2. Can you freeze tomato paste?

Yes! Freezing is highly recommended to extend the shelf life of tomato paste. Frozen paste lasts for 6 months to 1 year and can be used directly in cooking after thawing.

3. Is it safe to use tomato paste past the expiration date?

If stored properly and the container is in good condition, unopened tomato paste is generally safe to use for 1-2 years past the expiration date. However, the quality may not be as good as a fresher product.

4. How to revive semi-dried or thickened tomato paste?

If your tomato paste has become a bit dry or hardened on the surface, you can often revive it by simply stirring in a little bit of warm water or oil to restore its smooth consistency.

JOLION Foods Offers Professional Sauce OEM & ODM Services

At JOLION Foods, we pride ourselves on producing high-quality tomato pastes and a wide variety of sauces tailored to client needs. As a leading professional in sauce OEM & ODM services, we combine modern technology with strict quality standards to ensure each product meets safety, flavor, and consistency expectations.

Our expertise allows us to create sauces for both retail and foodservice markets, offering flexibility in packaging, flavor customization, and production scale.

Conclusion

To summarize, how long does tomato paste last?

• For unopened tomato paste, it could be 1-2 years past the best-by date if stored in a cool, dark place.

• For opened tomato paste, it could be 5-7 days in the fridge (airtight container) and 6 months to 1 year in the freezer.

Knowing proper storage and paying attention to a few key signs of spoilage can help you get the most out of your product.

At JOLION Foods, we are dedicated to providing premium-quality tomato paste and sauces. If you are a food brand looking for a partner that can provide exceptional quality and service for your sauce and condiment needs, we at JOLION Foods are here to help!