The Short Answer
Do sun-dried tomatoes go bad? Yes, but the timeline depends almost entirely on what type you have and how you store them. Dry-packed sun-dried tomatoes are among the most shelf-stable pantry ingredients you can own. Oil-packed ones are more perishable once opened, and homemade versions in oil carry a food safety consideration that most storage guides skip entirely.
Understanding the difference between the two types is the most important thing here. They behave very differently in storage, and the rules for one do not apply to the other. For a broader look at how to store pantry condiments and staples, see our Food Storage Guide.
Short answer: Unopened dry-packed sun-dried tomatoes last 9 to 12 months at room temperature and up to 2 years refrigerated. Unopened oil-packed jars last 1 to 2 years in the pantry. Once opened, oil-packed must be refrigerated and used within 6 months. Dry-packed opened keep 6 to 9 months in an airtight container.
Sun-Dried Tomato Shelf Life at a Glance
Type & Condition
Pantry
Refrigerator
Dry-packed, unopened
9 to 12 months
Up to 2 years
Dry-packed, opened
6 to 9 months (airtight container)
Up to 1 year
Oil-packed, unopened
1 to 2 years
Beyond best-by date; quality declines over time
Oil-packed, opened
Not recommended
Up to 6 months
Homemade in oil (plain, fully dried, no garlic or fresh herbs)
Up to 6 months if fully dried
1 to 2 months after opening
Homemade in oil with garlic or fresh herbs
Not safe — refrigerate only
4 days maximum
Frozen (either type)
—
Up to 1 year
Dry-Packed vs Oil-Packed: Why It Matters
Dry-packed sun-dried tomatoes are sold in bags or vacuum-sealed pouches and look like dried fruit: leathery, shrunken, and intensely colored. Because nearly all their moisture has been removed during drying, there is very little water available for mold or bacteria to grow. This makes them remarkably shelf-stable. Stored in a cool, dark pantry in an airtight container after opening, they will stay good for the better part of a year.
Oil-packed sun-dried tomatoes are softer, already partially rehydrated, and submerged in olive oil, often with garlic, herbs, or other seasonings. The oil creates an anaerobic (low-oxygen) environment that extends shelf life when sealed but requires careful handling once opened. Once air gets into the jar, the clock starts. They must be refrigerated and kept fully submerged in oil at all times.
The Food Safety Warning Most Guides Skip
This section matters most for anyone making sun-dried tomatoes at home or adding fresh ingredients to a store-bought jar.
Clostridium botulinum, the bacterium that produces botulism toxin, thrives in anaerobic (low-oxygen) environments like oil. Fully dried tomatoes on their own are acidic enough to provide some protection in that environment. But adding fresh garlic, fresh herbs, or other low-acid ingredients to a jar of oil creates conditions where botulism can develop.
The Oregon State University Exten
