SPROUTING GUIDE
© Frances Michaels
Sprouting is an easy way to add essential vitamins and enzymes to your diet. Other advantages to doing your own sprouting:
- It is simple and quick; only very basic equipment is needed.
- There is a wide choice of taste sensations; sprouts are usually eaten raw but some (lentils, soybeans, chickpeas)
require light steaming.
- Commercial sprouts do not always use organic seed, so growing your own gives you that chance to increase your
organic consumption.
- It takes very little space in the kitchen and allows you to grow some of your food without actually needing a
garden.
- It is very economical, sprouts can multiply by up to 15 times their weight.
- It allows you to reduce your food miles by supporting your local grower - you!
Sprouting is all about providing the right conditions for seed to germinate. In a sense
it is 'bench top organic vegetable gardening'.
Steps to Successful Sprouting
- Sprouts can be produced all year round but keep in mind that the same rules apply as for successful seed
germination in the garden. Just like all other seed, sprouting seed has a temperature range that is best for
germination. Avoid very hot or cold periods; temperatures between 20°C - 28°C work best. In winter a heated
propagator tray can be helpful.
- Wash the seeds well in fresh water before soaking. Float off any leaf or twig debris. Small seeds that
float off are usually not viable. The exception is onion which has to be encouraged to sink.
- Soak the seeds for the correct time; do not over or under soak. Over-soaking can kill your sprouts. Good
aeration with a plentiful supply of oxygen gives life to the seed, so avoid soaking too much seed at a time
and then overcrowding it in the sprouter. Never put the sprouting jar or bag flat to a surface where air cannot
reach the seeds; all living things need to breathe. Poor drainage will also cause the seed to rot.
- Rinse at least twice a day. During hotter weather, rinse more often. Thorough rinsing is important as the
water provides the moisture needed to activate growth, it also flushes away waste products and re-oxygenates
the seed, but be gentle. If you can’t be at home on hot days, refrigerate the sprouts until you get back.
Under-rinsing will cause the seeds to shrivel and die, as will hot, direct sunlight. If seeds start to dry out,
soak briefly and then drain well.
- Only start sprouts if you are available to look after them for the next 3 - 5 days.
- To produce green, leafy sprouts, daylight is important but always avoid direct sunlight. A kitchen bench is
ideal for access to the sink for rinsing but windows need to provide sufficient light.
- Once the sprouts are ready, store them in the fridge. Washing well first in a bowl of water
will separate unsprouted seeds and some of the seed coats. This is particularly important with
harder seeds such as mung beans. The hard seeds will stay on the bottom of the bowl allowing the
sprouts to be scooped off the top. Sprouts store best when well drained, even dry to touch,
in a container that breathes. They will go slimy pretty quickly in a plastic bag. Rinsing every few days and
draining well will prolong their storage life.
- Any soaked seed or sprouts that are even slightly mouldy should be discarded.
Safety tips: Use only organically certified or untreated seed. Avoid seed that may
have been fumigated or treated with a fungicide.
Download for
free:
Green Harvest Sprouting, Wheatgrass and Microgreen Guide
(625KB)
Different Types of Growing Containers
Different seeds need different growing methods to be successful.
Trays
Tray sprouters are flat with drainage holes. They allow leafy sprouts to grow straight up and receive maximum light.
They can be as simple as using a seedling tray or be a multi-level sprouter with a lid and drainage tray.
Multi-level
tray sprouters make it easy to produce a continuous supply of sprouts, by starting an additional tray every few days.
They are particularly useful for sprouts where the seed hulls are hardy and too chewy to eat and where just the green
tops and stems are harvested, by cutting off with scissors. This group includes delicious sprouts like buckwheat and
sunflower, and most of the grain sprouts like wheatgrass, barley and oats.
Jars
To make your own jar sprouter choose a large glass jar with a wide, straight neck. Flywire or cheesecloth and a rubber
band provide the lid. The covering needs to allow sufficient drainage and aeration, or mouldy sprouts will result. The
jar sprouter works well as it comes with a built-in drainage stand. It is particularly important not to overcrowd the
seeds in jar sprouters.
Automatic Sprouters
Electric tray sprouters are available and worth considering if your time is limited for giving the sprouts enough
rinsing etc.
Hint: Only mix sprouting seeds together that have a similar growing time and requirements.
Microgreens, salad mix, mesclun and baby leaf are new terms for many gardeners. So what are they and are they worth
growing in the home garden?
You can find
Microgreens Growing Information here.
You can find
Salad Mix Growing
Information here.
Sprouting in a Jar, Bag or Dome Sprouter
Seed Type |
Soaking Time |
Quantity of Seed |
Rinses per day |
Yield |
Days to Harvest |
Alfalfa |
Wash seed then soak 3 - 6 hours |
1.5 tbsp |
2 - 3 |
1½ cups |
3 - 5 |
Broccoli |
Wash seed then soak 4 - 8 hours |
2 - 3 Avoid seeds clumping |
1 - 1½ cups |
3 - 6 |
Buckwheat |
Wash seed then soak 20 - 30 minutes |
1 cup |
Twice a day |
1½ - 2 cups |
24 - 48 hours |
Chickpea |
Wash seed then soak 8 - 12 hours |
1 cup |
3 - 4 |
2½ - 3 cups |
2 - 4 |
Fenugreek |
Wash seed then soak 8 - 10 hours |
1.5 tbsp |
1½ cups |
2 - 5 |
Lentil |
Wash seed then soak 5 - 12 hours |
2 - 3 |
1 - 1½ cups Wash off hulls & remove hard seeds that have not sprouted on final rinse |
4 |
Mung Bean |
Wash seed then soak in warm water 6 - 12 hours |
4 - 5 |
Mustard |
Wash seed then soak 8 hours |
2 - 3 Avoid seeds clumping |
3 - 6 |
Onion |
Wash seed then soak 8 - 12 hours |
2 - 3 tbsp |
2 - 3 |
10 - 12 |
Quinoa |
Wash seed then soak 20 - 30 minutes |
⅔ cup |
3 |
1½ cups |
24 - 48 hours |
Radish and Daikon |
Wash seed then soak 6 - 12 hours |
1.5 tbsp |
2 - 3 Avoid seeds clumping |
1 - 1½ cups Wash off hulls on final rinse |
3 - 6 |
Red Cabbage |
Wash seed then soak 4 - 8 hours |
1 - 1½ cups |
Soybean |
Wash seed then soak 15 - 24 hours |
1 cup |
3 - 5 |
3 - 4 cups |
3 - 5 |