Analysis of information sources in references of the Wikipedia article "Kosher style" in English language version.
Some Jewish delicatessen served only kosher meat, but many were kosher style, meaning that they served meat not certified as kosher but did not serve dairy (to avoid mixing with meat) or any pork and shellfish products. With Jewish acculturation to the mainstream, however, the concept of kosher-style delicatessens broadened to include smoked meat sandwiches with slices of cheese or luscious New York-style cheesecakes for dessert - if not the occasional ham sandwich.
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