Approximately 21% of American Jews keep kosher homes. These Jews keep kosher year round, not just during Passover (there are additional rules to be kept during Passover). A small portion of that 21% eats non-kosher out side of the home, like when on vacation or visiting a non-kosher friend.
Contradictory to popular belief, food is not made Kosher by a Rabbi blessing the food, not is kosher a style of food or cooking. There can be Chinese Kosher or Italian Kosher food as long as the food is prepared in accordance to the kosher rules. Kosher is a form of food preparation that follows the rules set out in the Torah.
Many restaurants advertise kosher style food. This generally means this establishment serves traditional Jewish style food, but that their food is actually kosher certified.
Most of the kosher rules have no explanations. Orthodox or reformed Jews follow them simply because the Torah says so. Eating and living Kosher is a day-to-day reminder of being a Jew and living lifestyle separate from that of the world.However, some people believe that there are additional health benefits to eating kosher. Separating meat and dairy may lead to better digestion and refraining from eating blood vessels and certain nerves can lead to better quality, cleaner meat. There could also be environmental benefits to eating kosher. For instance, the Torah puts camel and pig on the “unclean” list. There is not a substantial chemical difference between camel or pig meat, and that of a cow or goat, but a camel is worth more as a transportation service than as a food source.
Traditional Ashkenazic Jewish foods like knishes (a filling surrounded by dough and baked), bagels, blintzes (similar to a thin pancake or crepe, but unlike in crepes, yeast is used), and matzo ball soup (a chicken soup) can be non-kosher if prepared incorrectly.
Ashkenazic Jews (also known as Ashkenazi Jews) are the people that descended from the medieval Jewish communities along the Rhine River in Germany. The name originates from the medieval Jewish name for this region.) Today Ashkenazi is a kind of pronunciation of Biblical Hebrew favored for liturgical use. Today Ashkenazic Jewish food is widely considered the food that is the most kosher and most Jewish.
Up next… the kosher rules!