From 2004. Bean Sprouts grown on a tray lined with a wet towel, a couple sauce dishes to keep the bag from touching the sprouts. I just slid this bag over the tray and left one side open to allow a little air in. Kept it in a dark spot and in about 3 days they pop. I consume them like that for a nuttier texture or let them continue to grow their root out longer for a more crispy juicy sprout. The first sign that a leaf is starting to grow, I put them in an airtight container and refrigerate.
Another way I tried was with a plastic tube. Apparently they like to be crowded together. Grown similar way, soaking the beans overnight then draining. Put them in the tube, cut a big hole in the end caps and lined with nylon netting. That way they have a good amount of air circulation and it is easy to pour water through it. I also added a sleeve to block out light, nothing more than some wrapping paper that slid over the tube.
Surely there are a million ways to do this. I have used empty jars with holes drilled in the cap. Circulation was not as good though and they had to be rinsed very often to keep from rotting, which exposed them to light which I try to avoid. I have also tried lining a sieve and colander with damp paper towel and covering with opaque cloth or plastic. I think I like best putting a black garbage bag layer over the beans in a tray so that there?s circulation all around, but that requires a lot of space. The jar method is nice and compact. I am going to keep experimenting with it.