Rice is a staple food for more than half the world, and is prevalent in every society. Asian restaurants will inevitably prepare large quantities of rice on a daily basis; a job which rice cookers can greatly expedite. Homes can also benefit from rice cookers, especially since rice has so many applications. Similar to a croc-pot in form and function, all the operator needs to do is dump in dry rice and water, put the lid on, turn on the power and walk away. In about a half an hour, the rice is ready to drain and serve. Most rice recipes call for equal parts of rice and water to prepare. Since rice absorbs most of the water during cooking, cooked rice is about twice the size of dry rice. Take this into consideration when looking for a rice cooker to suit your capacity needs. If you serve up about 50 cups of cooked rice every day, then you will need a unit designed to hold at least 25 cups of dry rice. As capacity increases so does size. You will want to check the overall diameter and height of the cooker you select to be certain that it will fit on your countertop.