Just the facts. From the experts.

 

Here's a recent inquiry from a Best Food Facts reader as well as a response from Dr. Tong (Toni) Wang, Professor in the department of Food Science and Human Nutrition at Iowa State University.  

 

Inquiry:

How long will tahini last after opened and should it be stored in the refrigerator?

 

Expert response:

If the tahini is made like it is in oriental countries – using roasted seeds – it can be quite stable. It can last one to two years under refrigeration, based on my personal experience. Although sesame seed oil is made up of about 40% highly oxidizable linoleic acid (an unsaturated fatty acid - also known as omega-6 acid), the paste is actually amazingly stable. I expect it to be quite stable even if stored (after opening) at room temperature. Personally, though, I always refrigerate it.   

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