The primary issue with pickles and their status as a kosher food is the use of animal products at some pickling and canning facilities. A pickle is made by brining a cucumber in a solution of water and salt. Sometimes, the brine is emulsified with polysorbates, which are made from animal fat. If the polysorbates are from kosher animals such as cattle slaughtered in accordance with kosher law, the pickles would be considered kosher. However, the concern is that the pickles could be contaminated with products of so-called unclean animals, such as pigs, or that the animals used to make the polysorbates were not slaughtered properly. As a general rule, it is easier to make pickles without polysorbates if a facility is pursuing kosher certification.
In order to be certified, the kosher pickle facility must permit inspection by a rabbinical kashrut inspector, or mashgiach. Periodic inspections will be carried out to make sure that the facility conforms with kosher laws, and a kosher-certifying organization will allow the facility to include a kosher logo on the label. This assures Jewish consumers that the kosher pickles they are purchasing are, in fact, kosher.
In order for a pickle to be classified as kosher in terms of flavor, it must be made with brine and garlic. The common term kosher pickle is derived from kosher salt, a thick grained salt used to brine or season meats and vegetables both inside and outside of Jewish tradition. The garlic adds to the zesty, slightly spicy flavor of a true kosher pickle made in the style of a Jewish delicatessen. Although the overall numbers of Jewish delicatessens are declining around the world, a fully functioning deli will often pickle an assortment of vegetables to serve with food. Some pickling companies even specialize in Jewish style pickled foods.
What Makes a Pickle Kosher?