What is the difference between kosher and non-kosher hot dogs?
Kosher hot dogs are prepared following all the rules of kashrut. Muslims have a similar food process called Halal foods.
Kosher rules that would apply to hot dogs specifically include:
- The method of killing and bleeding the animal
- The absence of blood in the mix
- The absence of meat from animals that are not allowed according to the rules of kashrut (pork, rabbit, etc)
- The absence of milk or milk products in a meat hotdog
- The absence of grain in the mix during Passover
- The cut of the meat (in most places, the hind quarter of an animal isn't used because the difficulty of removing the necessary veins, arteries, etc to make it kosher is cost prohibitive.)
Non-kosher hot dogs have anything that resembles meat that can't be sold as a cut of meat - lips, snouts, muscle scrapings from bones, whey powder, odd animals. Kosher is much the same, but from a much more limited set of possible ingredients.
The most important difference to the average non-kosher consumer is that non kosher hot dogs are usually a mixture of beef and pork, while kosher ones are usually all beef.