Growing Soy Bean Sprouts

Growing Soy Bean Sprouts

Seed Prep

When you first mix your Soy Beans up in water you may see some foam (sometimes more - sometimes less). It is good to Prep Soy before Soaking, it will remove some of the starch from the water in which they are going to soak which will help them take up water and will make your post-soak Rinse easier too.

Soak Water

Soy soak water is starchier than most other seeds so Rinse and Rinse until the water you drain off runs clear.


Soy will sprout better with more frequent Rinses. We Rinse and Drain every 4-8 hours.


Soy is highly sought for its famed nutritional value, but as a sprout it is often difficult. The beans often split while sprouting and discoloration is not uncommon - especially if you over sprout or don't drain well enough. Their flavor, while pleasing to some is unpleasant to others. We offer these because many folks want them, but we need to warn you that we do not guarantee you will like them. As with all of our seeds - these are good sprouters, but we will not buy them back if you don't like them.

Big Soy Sprouts?

We've not tried this - but we've seen Soy Sprouts big and thick rooted in Asian Markets - like Mung Bean sprouts. We don't like Soy enough personally to fit it into our schedule, but here is how to grow big, thick rooted Mung Bean sprouts: To do this you will need a Sprouter which drains from the bottom (Easy Sprout is the perfect choice), 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: Don't put them (or any other sprout) in a closed cabinet or closet, etc. Darkness is a VERY over-rated element in sprouting! Just minimize it by using a darkish corner in your kitchen.

•Apply a weight directly to the beans while in the sprouter (between Rinses. We recommend using two Easy Sprouts. We fill the Solid Base (of the Easy Sprout that we aren't growing in) full of water - and snap the Flat Solid Lid onto it. We then put that Solid Base right on top of the beans between Rinses. You can rig something else if you like - using Easy Sprout or another sprouter.

•On the 3rd day, or when your beans are solidly in place (they won't be budged by water), soak the sprouts for 10-20 minutes in cool water. If you are using Easy Sprout all you have to do is leave the Growing Vessel in the Solid Base (that in which it always sits between rinses) and fill it up.Rinse well after this soaking.

•As the sprouts grow you can reduce the weight on them to nothing by the last day. The sprouts themselves form such a tight mass that they apply their own weight.

•You may skip the last Rinse - allowing your sprouts to grow for 24 hours without water. They will generate more heat (which all sprouts do as they grow - at every stage) than usual and can gain substantial mass during this period. There is a slight danger in this - that the sprouts will generate too much heat and will start to slow-cook, but it is a very rare problem. Do it when your house is cool, but skip it during hot weather.

Experiment! Have Fun! It's All Good!

Dry Soy Beans await their Soak.

2 - 12 hours later... Soaked, Rinsed and Drained.

12 hours later... Another Rinse/Drain cycle.

12 hours later... Another Rinse/Drain cycle. Harvest, now, before, or....

Go another 12 hours - if you like 'em longer.

If you go another 12 hours - expect something like this.

Family: Leguminosae
Genus: Glycine
Species: max
Cultivar: Unnamed