The size of abalone is usually divided into heads according to the diameter of the shell, and each head represents the size range of the abalone. The following is the general standard for abalone size separation:
8-head abalone: about 3.0cm to 3.9cm in diameter. This is the smaller size range of abalone, usually younger or smaller individuals.
10-headed abalone: about 4.0cm to 4.9cm in diameter. This is a mid-sized abalone, relatively mature but not very large.
12-head abalone: about 5.0cm to 5.9cm in diameter. This is the larger size range of abalone, usually adults.
14-head abalone: about 6.0 cm to 6.9 cm in diameter. This is a larger-headed abalone with larger and relatively mature shells.
This splitting standard can vary according to the preferences of different regions, catering markets or merchants. The standard of splitting heads may vary slightly in some places, but generally speaking, for every 0.5 cm increase in diameter, one additional head classification will be added.
The splitting standards are usually publicized and marked when merchants sell abalone, making it easier for consumers to choose abalone that suits their needs and budget. When purchasing abalone, ask the merchant for specific information on size and splitting to ensure you are getting the size you want.
