Lior Lev Sercarz, founder of spice company La Boìte, considers tahini a must-have ingredient in the kitchen. “It is such a staple item in Israeli food,” says Lev Sercarz, author of “A ...

Of course, if you spot any signs of mold or other odd colors, it's time to toss the tahini. Naturally, the key is to use up the tahini before it spoils. Although tahini is a main component of a ...