Sesame oil is a kitchen staple, known for its rich, nutty flavor and its importance in Asian cuisine. Whether you use it to whip up a stir-fry or drizzle it over a salad, sesame oil is packed with flavor and health benefits. But how long does sesame oil last? Does it ever go bad? In this guide, we’ll dive into everything you need to know about sesame oil’s shelf life, how to tell if it’s gone bad, and the best storage tips to keep it fresh longer.

What is Sesame Oil and Why is it Popular?

Sesame oil is made from sesame seeds and is widely used in cooking, particularly in Asian cuisine. Its unique flavor adds a rich, nutty taste to dishes. Whether you’re using plain or toasted sesame oil, it’s a versatile ingredient that also brings health benefits. Rich in Vitamin E and antioxidants, sesame oil helps reduce inflammation and supports heart health.

But like all oils, sesame oil has an expiration date, and it’s essential to understand how long it stays fresh to ensure your dishes always taste their best.

How Long Does Sesame Oil Last?

The shelf life of sesame oil varies based on factors like whether it’s toasted or plain and how it’s stored. Let’s break down how long sesame oil lasts under different conditions:

• Unopened Sesame Oil: Unopened bottles of sesame oil can last 12-18 months if stored in a cool, dark place.
• Opened Plain Sesame Oil: Once opened, plain sesame oil should be used within 6-12 months.
• Opened Toasted Sesame Oil: Toasted sesame oil has a stronger flavor but a shorter shelf life. It should be used within 6-9 months after opening.

How to Tell If Sesame Oil Has Gone Bad

Wondering if that bottle of sesame oil in your pantry is still good? Here are some quick tips on how to tell if your sesame oil has turned:

1. Check the Expiration Date

The expiration date is a great place to start, but it’s not the final say. If your oil smells and tastes fine, it might still be usable a month or two past the date. However, oils older than two years should be discarded.

2. Look at the Color

Light sesame oil should be pale or light golden. If it starts turning dark or amber, it’s likely gone bad. Toasted sesame oil, while darker to begin with, will become even more opaque as it spoils.

3. Smell It

Fresh sesame oil has a mild, nutty aroma. Rancid sesame oil smells sharp, like chemicals or paint. A bad smell is a strong indicator that it’s time to throw out the oil.

4. Taste Test

If the oil passes the smell test but you’re still unsure, try a small taste. Bad sesame oil will taste sour, bitter, or off in some way. Trust your taste buds!

Best Storage Tips to Keep Sesame Oil Fresh

Proper storage plays a big role in extending the shelf life of sesame oil. Follow these storage tips to keep your oil fresh for as long as possible:

• Store in a Cool, Dark Place: Keep sesame oil away from direct sunlight and heat. A pantry or cupboard is ideal.
• Refrigerate After Opening: Once opened, sesame oil can be stored in the fridge to extend its shelf life. It may thicken but will return to normal at room temperature.
• Use Smaller Bottles: Buying smaller bottles of sesame oil ensures that you’ll use it up before it has a chance to go bad. This is especially useful if you don’t cook with sesame oil regularly.
• Seal Tightly: Always keep the lid tightly closed to prevent air from getting in and oxidizing the oil.
• Don’t Mix Old and New Oil: Never combine new sesame oil with older oil. The older oil will accelerate the breakdown of the fresh oil.

Can You Still Use Expired Sesame Oil?

If your sesame oil is only slightly past the expiration date but still smells and tastes fine, you can probably still use it. However, for the best flavor, try to use sesame oil within its recommended timeframe.

Conclusion: Keep Your Sesame Oil Fresh for Flavorful Cooking

Sesame oil can last a long time when stored correctly, but it’s important to know when it’s gone bad. By following these storage tips and paying attention to signs like smell, color, and taste, you can ensure that your sesame oil stays fresh and flavorful for your favorite recipes.