structural:summarization, linguistic:paraphrasing, quality:correction, linguistic:translation
As cooking utensils

The first chopsticks were used for cooking, stirring the fire, serving or seizing bits of food, and not as eating utensils. One reason was that before the Han dynasty, millet was predominant in North China, Korea and parts of Japan. While chopsticks were used for cooking, millet porridge was eaten with spoons at that time. The use of chopsticks in the kitchen continues to this day.

Ryōribashi (料理箸) are Japanese kitchen chopsticks used in Japanese cuisine. They are used in the preparation of Japanese food, and are not designed for eating. These chopsticks allow handling of hot food with one hand, and are used like regular chopsticks. These chopsticks have a length of 30 centimeters (12 in) or more, and may be looped together with a string at the top. They are usually made from bamboo. For deep frying, however, metal chopsticks with bamboo handles are preferred, as tips of regular bamboo chopsticks become discolored and greasy after repeated use in hot oil. The bamboo handles protect against heat.

Similarly, Vietnamese cooks use Đũa cả (𥮊奇) or "grand chopsticks" in cooking, and for serving rice from the pot.