1. Tonkotsu are meat bones from different parts of pigs. Tonkotsu are generally used to make tonkotsu noodle soup. The word comes from Japan. The Chinese character for pig in Japanese is written as dolphin, also known as pig bone.

2. Tonkotsu means pig in Japanese. Japanese tonkotsu ramen soup is a soup made from large pork bones and a variety of vegetables and fruits for a long time. Anyone who likes noodles knows that the soup is the life of a bowl of noodles.

3. How to make tonkotsu noodle soup: To make tonkotsu soup, first remove the blood from the bones and crack them open, bring to a boil over high heat, and then simmer over a slow fire for more than ten hours until the bones are milky white. The delicious tonkotsu soup base is paired with soup noodles, which is endlessly memorable.