Are spontaneous mung bean sprouts too long toxic?

No poison, the bottom did not grow small whiskers to be careful. Because that is some treacherous traders with no root chemical ripening toxic. Generally will lose nutrients and moisture, will become old, the toxin is not so, but if put rotten will certainly have harmful substances.

Expanded:

. p>The way to grow your own mung bean sprouts: net the mung beans in a pot or other container as needed, pour in water and let the water submerge the beans, seal them properly with plastic paper or plastic sheeting, and put them in a hotter place, such as a hot kangtou! Remember not to expose to sunlight! Otherwise the bean sprouts will photosynthesize and turn green! Invitation to change a little water, or beans without oxygen will not germinate, more likely to mold.
Mung bean sprouts are low in calories and high in water and dietary fiber. Mung bean sprouts contain in addition to vitamin C generated in the germination process, but also contains the original beans contained in high-quality plant protein and vitamin B1, vitamin B2, calcium, potassium, phosphorus and iron and other minerals in abundance.
References:

Baidu Encyclopedia-Mung Bean Sprouts

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