In a kosher kitchen, items used for preparing and serving meat and dairy must be separated. For that reason, appliances often come in twos: two refrigerators, two cooking ranges, sinks, dishwashers and so on.
Why do Jews have two sets of utensils?
Instead of one sink and one dishwasher, they now have two of each, so they can easily separate meat and dairy dishes and load them to be washed later.
Why do some houses have 2 kitchens?
Convenience is another reason people are building homes with two kitchens. If the home has finished living space on separate floors, such as the main floor and a basement level, it can be easier to prepare snacks and meals in a separate kitchen area on each floor rather than having to run up and down stairs.
