Boiling and insolation sterilization: For small coral, it can be boiled in clean water, taken out after about 1 hour, washed with tap water to remove impurities and sundries on the surface, then soaked in clean water for/kloc-0 ~ 1 2 hours, washed with water1time, and finally insolated for sterilization.
Coral is a kind of marine cylindrical coelenterate, which is automatically fixed on the calcareous remains of ancestral corals in the white larval stage. Coral is the shell secreted by coral. The chemical composition of coral is mainly CaCO3, which exists in the form of microcrystalline calcite aggregate. There is also a certain amount of organic matter in the composition, which is mostly dendritic and vertical. Each individual coral has concentric circles and radial stripes on the cross section, and its color is often white, but there are also a little blue and black. Corals are not just like branches.