I wanted this idea! Yamazaki Kogyo's "TOWER" series has released "Rice Bitsu for 1 Go Sorting Refrigerator" that eliminates the need to weigh rice when cooking rice. The selling price of the official store is 1,944 yen (tax included).
This product is a rice bowl that can store rice separately for each go. There are 12 partitions in the case, which can hold a total of 12 go of rice (2 kg of rice is about 13 go).
To use, just open the lid and put rice from the top to the height of the partition. Close the lid again and slide the slide cap to remove one go.
When I actually weighed it, it was certainly one go in one room. Some rice will remain on the bottom, but I wonder if it's okay if I cook it all together at the end.
The main body size is W18.5 x D8.5 x H24.5 cm. The smart design that fits in the refrigerator door pocket or vegetable compartment is also a point. It is also hygienic that all parts can be washed.
In a household where a large amount of rice is cooked every day, it may be troublesome to transfer it, but it was just the size for the author's house, which cooks only about 2 go at a time. I would like to thank the manufacturer who made it.