Firstly, after the beansprout is revealed, the black shell is then take apart from the sprout, and collected.
After which, the seperated shell is taken out into the open, and expose to sunlight, to dry up the shells, and to eliminate the bacteria within the sprout.
My mom, took these shells from the beansprout seller, in the wet market. They will give you for free, but the hardwork comes from a long week of drying up the shells and of course, forming them up into a pillow material.
See the difference, after "cleaning" up the shells of dead sprouts, and after sunlighting them.
It's hard work, but worth while for my mom's grandson. Even when i was a baby, my mom didn't even make it for me. Mavrick is certainly one lucky grandson. Hahaha.
