Does Tomato Paste Go Bad?

Tomato paste is essential around the kitchen for busy home cooks, and you’ll often find yourself buying the tubed varieties due to how easy they are to store and because they last longer.

This fact then inevitably leads to the question, “how long does tomato paste actually last?” It’s a good question. So does it go bad?

Read on to find out.

What Is Tomato Paste?

Tomato paste is refined tomatoes that have been cooked and reduced with all of the skins and seeds removed. The concentrated flavors are best enjoyed when gently heated as this helps minimize acidity while unlocking some of the sweetness.

You can find tomato paste in most grocery stores; look out for sections that stock exclusively Italian ingredients. If you can’t find it there, then look in the canned goods section.

How Long Does Tomato Paste Last?

This factor depends on the type and whether you have opened the tomato paste yet.

How long does unopened tomato paste last?

Unopened tomato paste can last for around 18-24 months when kept in a cool, dry place that can maintain room temperature year-round. Most canned tomatoes you come across will have a “Best By” or “Best Before” date. These dates are only guidelines, so you shouldn’t treat the expiration dates the same as safety dates.

How long does opened tomato paste last?

Opened canned tomato paste will last for around the same time as regular canned tomatoes when refrigerated, which is around 5-7 days. 

Opened tomato paste in a tube can last for approximately 7-8 weeks when refrigerated with the cap screwed on.

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