The green and red silk in Wuren moon cake is made of orange peel. Wash the orange peel, then cut it into small strips, soak it in clear liquid above limewater for 10 hour, and finally make the green and red shreds in the cake through various processes such as adding sugar, pickling and drying in the sun.

The reason why green and red silk are added to moon cakes is to match the color of cakes. It was in the Qing Dynasty. It is said that Zhong Qinghong silk has been added to the dough twists in Tianjin and the tea soup in Beijing. Because there was little sugar in ancient times, green and red silk were added to add flavor.

How is the green red silk made?

Clean the fresh orange peel first, then cut it into filaments, then soak it until the bitter taste in the orange peel is soaked thoroughly, and then dye it green and red with photosensitive pigment and photosensitive pigment. Finally, marinate with sugar and dry to get the green and red silk we need!

Secondly, in addition to oranges, green and red silk is also made of papaya and radish, just like the fig silk when I was a child, which is also made of radish. It's just that the cost is too high, so most of the green and red silk is made of orange peel.