How big is the rice cooker 3L and how many people will eat it?
Depends on how big your appetite, generally 3 holes, family use more appropriate
3L refers to the maximum capacity of the electric cooker, it can hold 3 kilograms of water, 4-5 people can eat steamed appetite for general Steamed Rice. It is the least capacity you don't add anything to zero, the scale are in a rice cooker, you may need to add water according to the ratio of rice.
It's three litres, probably for 4 people.