Oven vr pressure cooker vs crock pot vs rice cooker.?

I think you have things a bit off here,,,,You don't need a rice cooker to make rice, all you need is a standard cooking pot with a lid., and follow the directions on the package for stove top method,,A pressure cooker is used for cooking mainly meat or other items that you would normally cook in a big pot, a pressure cooker just cooks them faster., and the lids don't fly off and hurt anyone because they have a pressure valve on top that will blow if the pressure is to high, I have used one for 25 years, and my mom for 35 years and never had an accident or any other type of injury.. also you use the pressure cooker on top of the stove, and not in the oven.