What is the stamp on the meat moon cake? Pigment? Or something else?

The seal printed on the meat moon cake is printed with food pigment.

Natural edible pigments are pigments extracted directly from animal and plant tissues, which are generally harmless to human body, such as Redmi, chlorophyll, curcumin, carotene, amaranth and sugar color, and so on.

Synthetic food pigments are made from aniline dyes separated from coal tar, so they are also called coal tar pigments or aniline pigments, such as synthetic amaranth, carmine and lemon yellow. These synthetic pigments are harmful to human body, because they are easy to induce poisoning, diarrhea and even cancer, so they should not be used more or not as much as possible.

Extended data

Seal printing is a tool for making cakes. Chaozhou people called making rice cakes "making rice cakes" and making wooden models of rice cakes "making rice cakes".

Red heart seal is the "boss" of all kinds of seals in Chaoshan, and it is also widely used in Puning Chaoke area. However, on the one hand, the heart-shaped seal in this area absorbs many elements of Chaozhou's heart shape, on the other hand, it has its own uniqueness. The seal is peach-shaped, mainly with circular patterns, such as "Fu" and "Shou", as well as plant patterns such as "Peach Blossom" and "Pomegranate". It is mainly used for China New Year, Dragon Boat Festival, Mid-Autumn Festival, winter solstice and some places to pray.

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