It's the forbidden fruit… unless peeled. The strawberry has been the cause of much rabbinical consternation in recent years. The reason is that many rabbis believe strawberries to be a favorite hangout for insects, and eating an insect is actually more problematic in Jewish law than eating pork.
Do not use. Strawberries: should preferably not be used. Pineapple: Should be Peeled and washed off.
While plain fruits and vegetables are often inherently kosher, several of them do have a major kashrus nemesis: bugs! Those perfect looking strawberries, raspberries, blackberries, and blueberries frequently host several common insects, like thrips, aphids and mites.
All unprocessed fruits and vegetables are kosher.
All foods that grow in the soil or on plants, bushes or trees are viewed as kosher, with the exception of hybrid fruits and vegetables. Insects are not kosher so foods prone to insect infestation such as cauliflower must be carefully examined.
However, fruit that may be infested (e.g., strawberries) may only be used year-round, including on Pesach, when bearing an approved symbol.
The only grain product that is ever kosher for Passover is matzah, and it must be certified as such. Raw, kosher meat, fish and chicken, fruit and vegetables and other such produce are essentially kosher for Passover and need not be labeled as such, provided that they did not come into close contact with chametz.
Their reason has nothing to do with the taste of spinach, kale, or cabbage. It is because these and other leafy greens might be infested with tiny insects that would render them non-kosher.
Kashrut—Jewish dietary laws
Certain foods, notably pork, shellfish and almost all insects are forbidden; meat and dairy may not be combined and meat must be ritually slaughtered and salted to remove all traces of blood. Observant Jews will eat only meat or poultry that is certified kosher.
Policy on blueberries from the Chicage Rabbinical Council, the Star-K and the OU: CRC Policy on Blueberries: "Blueberries – Fresh must be rinsed in water and a cursory inspection is needed. All frozen without any added kosher sensitive ingredients is acceptable.
Apples, of course, have always played a major role in Jewish culinary traditions of the Jewish people and it seems that they grew in ancient Israel well before the Romans introduced them to the more promising environs of southern England.
Botanists call the strawberry a "false fruit," a pseudocarp. A strawberry is actually a multiple fruit which consists of many tiny individual fruits embedded in a fleshy receptacle.
Kashrut. While McDonald's operates several Kosher and non-Kosher restaurants, all the meat served in the restaurants is kosher beef. The difference is that the non-Kosher branches open on Shabbat and Jewish holidays, in addition to serving dairy products and cheeseburgers.
4ARE AVOCADOS KOSHER FOR PASSOVER? Yes, all fruits and vegetables are Kosher for Passover (including the Avocado).
Yet, for most kosher-observant Jews, McDonald's is a big red flag. Unless you live in Israel, that is. Of the 36,000 McDonalds locations in the world, there are only a few dozen that don't serve bacon or cheeseburgers and adhere to strict kosher laws.
Jewish law requires that a mashgiach (Jewish supervisor) must oversee the process to ensure that only milk from kosher animals is used and that only kosher ingredients have been added. For this reason (and others), only feta cheese with a reliable kosher certification may be eaten.
Previous attempts by KFC to enter the Israeli market failed, as the company could not find a successful recipe to make kosher their world-famous fried chicken, since KFC's recipe everywhere else mixes meat and milk, which is forbidden by Jewish religious law.
In short, here are some examples of everyday fruits and vegetables that require halachic checking for insects: artichokes, asparagus, basil, mint, broccoli, cabbage, cauliflower, celery, dill, kale, lettuce, parsley, cilantro, scallions, spinach, and strawberries.
Animals that live in water can only be eaten if they have fins and scales. This means that shrimps, prawns and squid are not fish in the true sense, and so they are just as non-kosher as the eel which has lost its fins through evolution.
Many observant Jews would love to eat ice cream for dessert after Shabbat and holiday meals, yet the rules of keeping kosher meant that ice cream couldn't be served after a meal that contained meat.
Along with all seafood other than fish with fins and scales, calamari is not kosher (see Leviticus 11:9). For more, see All About Kosher Fish.
This group of foods—which includes rice, beans, corn and peanuts—was originally banned because the items were often mixed with wheat, which Jews refrain from eating during Passover except in the form of an unleavened flatbread called matzah, David Holzel reports for the Times of Israel.
Like all other highly processed foods, ice cream can contain many dozens of ingredients. So in order for ice cream to be accepted as kosher, it needs to be marked kosher by a reliable certifying agency. Note that dairy ice cream may not be served after a meat meal.
All fruits and vegetables are Kosher for Passover (Avocado is a Passover favorite). Eggs are also Kosher for Passover.