How To Sprout Flax Seeds Without Making a Gooey Mess

RusticWise, how to sprout flax seeds

If you’ve grown other sprouts in a mason jar with success, you might be surprised to discover that flax seed sprouts don’t grow well in a jar at all. (In fact, you can put that sprouting jar away for now altogether!) The reason flaxseed is more difficult to sprout is because it’s a mucilaginous seed, meaning it turns gooey when in contact with water.

So, if you want to know how to sprout flax seeds without having a gelatinous mess, we’ll show you how. All you’ll need is a shallow dish, preferably an unglazed terracotta dish, clean water and a mister, and a bit of patience.

Packed with healthy omega-3 fatty acids, iron, protein, and dietary fiber, these tiny brown seeds are something you’ll want to add to your diet. Luckily, sprouting is simple, quick, and doesn’t take much space. So gather a few supplies and let’s take a look at how to grow your own fresh greens.

A closer look at flaxseed (aka linseed)

The flaxseed plant (Linum usitatissimum), also called linseed, or common flax, is a flowering annual plant with light blue flowers. Both the plant and the highly coveted seeds have a wide range of uses.

The fibers from the plant are spun into thread, which is then woven to produce linen. The seeds also produce linseed oil, which is used to produce linoleum flooring.

The edible light brown seeds are packed with nutrients. The seeds are used as a health food. (You’ll find ground flax in the health section of most grocery stores). Ancient Greeks and Romans also consumed this superfood for its high fiber and omega-3 content.¹

You can eat the seeds raw or toasted. Sprinkle flaxseed whole or ground onto cereals or smoothies, or incorporate it into bread.

And, of course, you can sprout the seeds, or grow them as microgreens.

how to sprout flax seeds, linseed seeds and flower
Credit: Vector State

Benefits of sprouted flaxseed

Flaxseed is a diverse plant that is highly valued for its health benefits and high nutritional content. This seed might look tiny, but it’s packed with goodness.

  • Great source of dietary fiber: Just 1 tablespoon of flaxseeds provides 10 percent of your Daily Value.²
  • Omega-3 fatty acids: The oils in each seed are packed with omega-3 fatty acids. In particular, it’s a rich source of alpha-linolenic acid (ALA), an essential fatty acid which helps with heart health and helps fight inflammation in the body.
  • Packed with nutrients: The ancient Greeks and Romans knew this plant and its seeds are a superfood. Linseed contains many nutrients, including calcium, copper, iron, manganese, thiamin (vitamin B1), magnesium, and phosphorus. It’s also a considerable source of protein. Just 1 tablespoon of flaxseed contains 4 percent DV.
  • Easy to digest: For those who have trouble digesting certain seeds or grains, you’ll be happy to know that sprouted seeds go down easier! The sprouting process breaks down hard-to-digest seed coatings making the body more able to access the nutrients.
  • Loaded with lignans: Lignans are a type of phytoestrogen which provides numerous health benefits. Lignans have powerful antioxidant properties which may lower the risk of heart disease, and prevent some forms of cancer.³

How to sprout flax seeds

The main reason that flax cannot be sprouted in a normal glass jar is that it’s a mucilaginous seed. Simply put, each seed contains a mucilaginous component in the outer seed layer, which becomes soft and gel-like when it becomes wet. Chia seeds are also mucilaginous.

So instead of using a regular sprouting jar, we’ll be using a shallow dish. In particular, use an unglazed terracotta plate. (You can imagine the mess you’ll have on your hands if you try the traditional rinse and drain method in a jar!)

Terracotta is a porous clay material that absorbs water. This is an ideal material to use when sprouting gelatinous seeds as it absorbs excess moisture. You want your linseed to stay moist, but NOT overly wet.

Supplies you’ll need

  • Clean unglazed terracotta dish
  • Cover (this can be a piece of cardboard, or another terracotta dish placed on top)
  • Organic flaxseeds
  • Water mister filled with filtered water

Note: The type of water you use to mist and water your sprouts should be drinking quality, preferably filtered water. This gives your sprouts a clean and healthy start. Clean water limits impurities from the water source and prevents harmful bacterial growth. When misting your sprouts, mist just enough so they stay moist, but not so much to make them overly wet and soggy.

RusticWise, how to sprout flax seeds, flax seed1
Flaxseeds turn gelatinous when they come in contact with water.
Credit: RusticWise

Step-by-step

  1. Sprinkle seeds: Spread about 1 to 2 tablespoons of flaxseeds evenly onto a terracotta dish. Give them a thorough misting of water.
  2. Cover: Cover the terracotta dish with a piece of cardboard, or another terracotta dish. The seeds need darkness now. Continue to mist every couple of hours on the first day. Sprouts should be kept at normal room temperature.
  3. Continue to mist: On Days 2 and 3, continue to mist twice a day, or every 12 hours.
  4. Harvest: Between Days 4 and 7, your sprouts are ready to harvest and enjoy. See the section below for more harvesting information.

When to harvest flaxseed sprouts and harvesting tips

Most people harvest their flaxseed sometime between Days 4 and 7. How fast your sprouts grow depends on your household temperature. Growing sprouts in the winter months may be slower because of cooler indoor temperatures; summer sprouting may be quicker.

Some people prefer to harvest earlier when sprouts are smaller, while others prefer to grow them longer. If you want to grow them beyond four days, they’ll need more water. You can pour a bit of water directly from a faucet with cool water, or a bottle. Drain any excess water.

On harvesting day, remove the cover and spray one last time. Expose the sprouted seeds to sunlight for a few hours to “green” them. This helps you get more vibrant looking sprouts, and any excess water will evaporate.

How to store your sprouted seeds

Gather your sprouts from the terracotta dish and place into a ventilated storage container in the fridge. Sprouts are best when consumed within 3 to 5 days.

We keep our sprouts in yogurt containers with a few holes drilled in the sides.

What do flax sprouts taste like?

If you’ve ever tasted ground flax, you’ll be familiar with its mild, earthy, and nutty flavor. The sprouted seeds share the same nutty flavor profile.

Add them to sandwiches, wraps, and salads. Use them to garnish dips, omelets, and soups. Or, add them to healthy smoothies or juices.

Related questions

What are flax microgreens?

Similar to flax sprouts, microgreens are the young shoots of sprouted flaxseed. The difference is they are grown in soil or another growing media, and are harvested just above the soil line.

Check out how to grow flax microgreens and their health benefits.

Can you sprout flaxseed with a glass plate?

Yes, if you don’t have a terracotta dish, you can use a shallow glass Pyrex dish. Note that glass doesn’t readily absorb water like terracotta does, so you’ll need to be extra careful about over-misting or watering your sprouts. Too much moisture may lead to mold issues.

If you like this post 👉 See our Essential Sprouting Guide: How To Grow Sprouts at Home

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References

  1. Britannica, flaxseed, seed and food, https://www.britannica.com/topic/linseed. Accessed October 2022.
  2. My Food Data (USDA), Flax Seeds, https://tools.myfooddata.com/nutrition-facts/169414/wt1/1. Accessed October 2022.
  3. Rodríguez-García, C., Sánchez-Quesada, C., Toledo, E., Delgado-Rodríguez, M., & Gaforio, J. J. (2019). Naturally Lignan-Rich Foods: A Dietary Tool for Health Promotion?. Molecules (Basel, Switzerland), 24(5), 917. https://doi.org/10.3390/molecules24050917

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