This is my mother's secret time-saving technique.
Actually, until recently I thought everyone washed bean sprouts like this.
She told me that this is way too simple to upload! But I went ahead and did it anyway.

Be sure to use bean sprouts that come in plastic bags! Sometimes you see ones sold in paper bags, but the bottoms of the bags tend to fall away so I don't recommend them!
In Step 4, when there's just a little water left in the bag, the bean sprouts tend to fall out, so be careful. Recipe by Haranouenoponyoponyo