Steamed buns made of fat meat are not called fat buns, but called crystal buns. The reason may be that in the production process, the fat meat is transparent and looks like crystals after being processed.

From the list of ingredients, the main ingredient of the crystal bag is fat, and the fat can become transparent after treatment, so it is named crystal bag. In addition, other ingredients, such as flour, sugar, yeast, etc., will be added to the crystal bag, which can make the crystal bag more delicious.

As far as the production steps are concerned, the production steps of crystal packets include cutting fat into cubes, pickling, mixing flour, sugar and yeast, adding fat cubes, kneading into dough, and finally dividing the dough into small pieces and steaming. In these steps, the diced fat meat can become transparent after pickling, which is one of the reasons why the crystal bag is called the crystal bag.

To sum up, the reason why steamed buns made of fat meat are called crystal buns instead of fat buns is because the fat meat is transparent and looks like crystal after treatment. In addition, adding other ingredients and specific production steps can also make the crystal bag more delicious.