Kosher food (i.e. food which meets the Jewish dietary laws) may include kosher bread. Challah and bagels are two examples, but any style of bread can be kosher as long as all the ingredients are kosher, and none of the utensils were used for non-kosher food.
Yes, but by doing so the oven will be rendered non-kosher, contaminate any kosher food placed therein, and have to be Kashered (ritually purified) before it can be used for kosher food.
When a container of food that has been certified kosher is opened, the opportunity for deliberate or accidental contamination occurs. Thus, an observant Jew might be hesitant to assume the food in such a container was still kosher unless he, or someone he trusted, had opened it and watched over it. More important, if the food were to be opened and heated up in an oven with non-kosher food, or which had been used for non-kosher food, it would no longer be kosher. This is why (for example) kosher airline meals must be served unopened.
Delicatessen places serve kosher food. And if you are talking about 'deli' food, it is usually kosher. _______ Delis are only kosher if they're kosher certified. Most delis aren't kosher.
Frog legs are not considered kosher food.
Yes it is kosher
Kosher food is a part of the Judaic faith.
Cleaner and healthier than non-kosher food.
Fish and chips can be kosher so long as the fish used is a kosher species and the food is prepared in a kosher kitchen with all kosher ingredients.
Kosher food is stored no differently than how any other food is stored.
Anything that has a kosher certification on it.
As long as the utensils and machinery is uncontaminated the food is kosher. This only applies to food that was kosher to begin with. The most well known sign is OU, which is an U on a circle. Any food grade packaging companies like http://www.robertsonpackaging.com do not have any food in their production facilities as they are completely sterile so all packaging to start with is kosher, the only way this would change is if the company that filled the packaging used non kosher products in them.