Polysorbate 80,  EEC NO. E433,CAS NO. 9005-65-6,also known as tween 80, is commonly found in pickles, it helps the multiple ingredients blend together. To ensure that every spear has some spice. 

 

More specific, when using flavoring oils – such as garlic, dill and the “heat” that makes some our items spicy or hot. The Polysorbate 80 keeps these oils in suspension. Without it, they would separate in the jar, much like oil and vinegar.

Polyoxyethylene sorbitan monooleate, one using area widely food emulsifier, named Tween 80 as well, yellow liquid, cas no. is : 9005-65-6, E code is E433, Slightly bitter, soluble in water, ethanol,
ethyl acetate and toluene, insoluble in mineral oils and vegetable oils. It has emulsifying, wetting and foaming properties.