sprout jar

Sprout Jar: Ideal For Growing Sprouts

Sprouts can be grown easily, quickly, and cleanly in a sprouting jar. We show which products are particularly suitable for this, how to build a germinating jar yourself, and what to consider when growing.

A sprout jar, also known as a sprouting jar, is the best method for growing sprouts: germinating seeds find optimal conditions in it and develop into edible sprouts within a few days. A warm, humid microclimate can be created in a sprout glass in no time at all, which promotes germination and growth. At the same time, handling is very easy and cultivation is still hygienic and clean.

Sprouts are a great way to add a few healthy and fresh ingredients to your menu, especially in winter. They contain large amounts of vitamin C and various B vitamins, valuable amino acids, and secondary plant substances, as well as protein, iron, zinc, calcium, and magnesium – to name just a few ingredients.

The fact that sprouts can be grown so easily and develop so well in glass bars on the windowsill or in the room is not only fun, the finished sprouts are also very beneficial for your health. And last but not least: very tasty.

Sprout glass: information in brief

Healthy sprouts can be grown easily and hygienically in a sprouting jar or sprout jar. Fast germinating species and varieties such as cress, radishes, and broccoli are suitable. Thanks to the germination glass, it usually only takes between three and seven days for the seeds to become ready-to-eat sprouts. Germ jars come in different designs and you can even make them yourself.

Which seeds can you grow in the sprout jar?

Sprouts are nothing more than freshly sprouted young shoots of vegetable or grain plants. Fast-germinating species and varieties are primarily suitable for growing in glass sprouts. The selection is very large and ranges from cress, mustard, fenugreek, mongoose, or soybeans to barley, oats, and rye to broccoli, rocket, radishes, lentils, or chickpeas. Lucerne (alfalfa) is also popular. Most of these germinated seeds can be eaten after three to seven days and used in the kitchen.

How do you grow sprouts in a germinating jar?

Sprout Jar
Man holding small strainer with raw quinoa seeds and rinsing it in cold water in the kitchen sink
Sprout Jar

You only need a few seeds to fill a sprouting jar full to the brim with sprouts. Experience has shown that one to two tablespoons are completely sufficient. In the first step, the seeds are thoroughly rinsed and washed under running water. Then you let them drain and put them in the germinating jar.

Sprout Jar

Sprout Jar

Then you fill the sprout jar with water and screw the lid on. During the soaking process, it quickly becomes apparent why you didn’t put more seeds into the jar: Germinating doubles or triples the size of the seed. The soaking time depends on the respective germination seeds. Alfalfa or radishes only need to soak for about four hours, beetroot needs a good 24 hours. The information on this can be found in the seed pack.

Sprout Jar Sprout Jar

After the swelling time, pour off the water through the sieve lid and place the sprout glass in the corresponding drip holder. This keeps the glass in an inclined position so that water can run off and the seeds are adequately ventilated. Depending on the model, a flat bowl or a saucer is required to catch the water.

For all sprouting seeds, the sprout jar must be rinsed two to three times a day. Otherwise, bacteria will quickly settle in the moist, warm glass, promoting the formation of mold and making the sprouts inedible. To prevent this, you should not place the glass jar too warm. The room temperature should not exceed 20 degrees Celsius.

When the sprouts are ready, take them out of the germinating jar and rinse them again before eating. If they are not eaten right away, put them in the refrigerator. There they can be kept for two to four days.

Recommended sprout glasses

Eschenfelder sprout glass

Eschenfelder System III Sprout Glasses (Anthracite, 750 ml), Glass

Eschenfelder’s sprout glass is almost a classic. The high-quality product includes a draining rack and a fine-meshed sieve lid, both made of stainless steel. The germinating jar is available in different sizes and can also be bought as a set, for example with suitable vegetable seeds or several jars.

Gefu Sprout Glass


The Gefu sprout glass, which has a more modern design, is also very practical. It is easy to clean and can even be put in the dishwasher. The product does not need a drip rack, as a drip tray is integrated into the bottom area.

Instructions: Build sprouts yourself

DIY fans can also easily build their germinating jars themselves. You usually already have the necessary materials and tools at home. You need:

  • Glass jar with lid (mason jar, jam jar, or similar)
  • Household elastic or twine/string
  • scissors
  • Gauze bandage / gauze fabric


sprout jar

Sprouts can also be grown successfully in self-made jars

Thoroughly clean the glass vessel and preferably boil it out before use. Then cut the gauze bandage or thin gauze so that it fits over the opening of the glass. Add a few centimeters all around the edges. Fill in the washed germination seeds and the water as usual and seal the jar with the fabric.

A rubber band or string will hold the gauze in place. After swelling, you can turn the glass upside down. So that the self-made sprout glass also stands at an angle, you use the existing lid (optionally also a saucer or similar) as a holder on which you lean the glass. To avoid water stains, you usually need an additional pad.


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