Calculus bovis, niu-huang (牛黃) or cattle gallstones are dried gallstones of cattle used in Chinese herbology. In China and Japan it has been long used to treat various diseases, including high fever, convulsion and stroke
We collect cow gallstones,
very simply and very lucrative!
we Simply open each gallbladder, filter the bile through a fine mesh sieve to collect any size of stone, even the smallest. ...
Once recovered, rinse them in cold water to remove the bile and reduce the risk of them bursting during drying.
How to collect gallstones?
It’s simple and very lucrative!
Simply open each gallbladder, filter the bile through a fine mesh sieve to collect any size of stone, even the smallest. Stones can also be found in the liver or the bile duct (they are then relatively small).
Recover
Once recovered, rinse them in cold water to remove the bile and reduce the risk of them bursting during drying put on a clean cardboard so any fluid drips outs
Drying and storage conditions
Drying is a very important step.
Once rinsed, carefully place the stones in a cardboard box with multiple holes of about 2 cm on each side to allow air to circulate.
Another box for dry gallstones
preserving
Once dry, be very careful when handling them, as the stones have become very breakable. If they were to break they would lose their value
Once dry, the stones can be stored in a well-ventilated cardboard box in the dark for 9 to 12 months without any problems.
