How is it that Moog beans sprouts are longer and thicker when sprouted by commercial grower...?

Question

and don't tend to obtain same shape and size when grown at home?

Answer 1

Lighting probably has a lot to do with it but they may also be adding some fertilizer salts to their water/ hydration. That would ensure that the sprouts will maintain some of the natural reserves in the seed and provide a greater weight. Supplemental lighting with tubes that have a greater UV level would tweak growth and I'm betting that they played with some lighting to see which frequencies gave faster growth and size when compared with no lighting (which uses reserves and thereby uses that stored energy and reduces weight). If the sprouts have a green to them you can be sure they have been in light, and a lighter green would mean tubes as opposed to sunlight. Pure white roots would indicate just some fertilizer salts, or possibly just high mineral content water. If you eat a lot of sprouts, try some tube lights to sprout and try some mineral water also.

Answer 2

Mung (or Moog) Bean Sprouts are most commonly seen big and thick rooted. They are common in Chinese cuisine. Commercial Mung Beans are grown with chemicals and gasses in huge 500 gallon machines. You will never get your home grown sprouts to look like those you see at a restaurant or supermarket, but you can get some thick roots. To do this you will need a sprouter which drains from the bottom and you'll need to add these procedures to your growing schedule:

When you Rinse, do not disturb the seeds/sprouts. The beans need to stay where they are - to form a mass that is unmovable. Rinse longer - with lower water pressure (if your sink has a sprayer, use that) during the first 2-3 days - until they are firmly in place.

Keep your sprouter in as DARK a place as you can without limiting air flow too much. Green Mung bean sprouts will have a bitter taste.

Answer 3

Are your seeds hybrid or GMO . Or are you using heritage seeds? The latter will produce a stronger plant and a greater yield .