The Science of Sprouts | The Sprouting Company

Skip to content

Early Black Friday · Up to 25% off + Free gifts

Early Black Friday · Up to 25% off + Free gifts08:13:54:06

Search

ShopLearn

MOST POPULARThe Starter KitYour all-in-one at home sprouting system](/content/products/starter-bundle-organic-high-glucoraphanin-broccoli/index.html)

LoginCountry/region Canada | CAD$

United States | USD$ Language English

Español

日本語

The Starter KitThe Starter Kit

Seeds Seeds

Seeds Shop all seeds

Equipment Equipment

Equipment Shop all equipment

Shop all Shop all

Save 25% on your first order when you subscribe. Your offer is below.

Start Growing -

Save 25%

Start Growing - Save 25%

As seen on

★★★★★

"This was so easy and fast. In 5 days we had beautiful and bountiful sprouts."

Jody S. | Verified buyer

EXCLUSIVE TO THE SPROUTING COMPANY

The compound your cells use to defend themselves, grown fresh on your counter in5 days.

Broccoli sprouts are the richest natural source of sulforaphane, the compound that activates Nrf2, your body's own cellular-defense pathway. Now you can grow them yourself for less than $1 a serving, in about 2 minutes a day.

Start Growing - Save 25%

Third-party verified potency

Backed by 25+ years of research

Seed to plate in 5 days, guaranteed

As Seen On

Recommended by Simon Hill, host of The Proof

“Sprouts do not ask you to change your diet. They slot into whatever you are already eating, at a cost almost nothing else in nutrition can match.“

Simon Hill, Nutrition scientist and host of The Proof

Recommended by Simon Hill, host of The Proof

“Sprouts do not ask you to change your diet. They slot into whatever you are already eating, at a cost almost nothing else in nutrition can match.“

Simon Hill, Nutrition scientist and host of The Proof

THE HARDWARE

The version of sprouting that actually works.

Most people who quit sprouting quit because it molded or rotted in a jar. The Sprouter is built to prevent that, and it takes about two minutes a day.

Airflow and full drainage stop the mold and rot that end most DIY sprouting.

Patented design, thick-walled glass, a 304 stainless steel filter, and dishwasher safe.

It sits out on your counter, so the habit stays in front of you.

The hardware

The version of sprouting that actually works.

Most people who quit sprouting quit because it molded or rotted in a jar. The Sprouter is built to prevent that, and it takes about two minutes a day.

Airflow and full drainage stop the mold and rot that end most DIY sprouting.

Patented design, thick-walled glass, a 304 stainless steel filter, and dishwasher safe.

It sits out on your counter, so the habit stays in front of you.

Works with all 12 of our seed varieties.

How it works

3 easy steps to your homegrown superfood.

1

Soak

Add seeds to the sprouter, cover with water, soak 8–10 hours (overnight).

2

Rinse

Rinse and drain twice a day. Watch sprouts emerge in 5-6 days.

3

Harvest

At 1–3 inches, rinse, dry, and pile them onto anything.

THE ADVISORY BOARD

Meet our Scientific Advisory Board

The people who guide our science are the same ones who've spent their careers studying it — led by Dr. Jed Fahey, who helped pioneer sulforaphane research at Johns Hopkins. You already know the compound. Now meet the experts behind it.

Dr. Jed Fahey

Head of Scientific Advisory Board

Nutritional biochemist, formerly of Johns Hopkins. Helped pioneer sulforaphane research.

Simon Hill

Scientific Advisory Board

Host of The Proof. Sat down with Dr. Fahey and our seed curator Doug Evans on why broccoli sprouts may be one of the most nutrient-dense foods you can grow at home.

Dr. Joel Fuhrman

Scientific Advisory Board

M.D. and author of Eat to Live. A longtime voice for nutrient-dense, plant-forward eating.

Cyrus Khambatta, PhD

Scientific Advisory Board

PhD in nutritional biochemistry, UC Berkeley. Co-founder of Mastering Diabetes and a leading voice in evidence-based, plant-forward nutrition.

THE SCIENCE

One compound. A quarter-century of research.

When you sprout our Organic High-Sulforaphane Broccoli Seeds, they produce sulforaphane, one of the most studied compounds in nutrition science. It works by activating Nrf2, your body's own cellular-defense system.

Glucoraphanin

→

Sulforaphane

→

Nrf2 pathway

→

Your cellular defenses

The precursor becomes the compound the moment you sprout and eat it. Fresh sprouts bring what your body needs to make the conversion.

01

How sulforaphane works

The switch that turns on your body's own defenses.

Your cells come with a built-in defense system governed by a protein called Nrf2. Most of the time it sits quiet. Sulforaphane activates it, signaling your cells to make their own antioxidant and protective enzymes. That is the difference between swallowing an antioxidant and growing one:

an antioxidant you take neutralizes a single molecule and it is gone, while sulforaphane supports your body in producing its own defenses, on its own schedule. Sulforaphane is not ready-made in the seed. It forms when you sprout, as glucoraphanin meets the enzyme myrosinase the moment a fresh sprout is chopped or chewed.

Mechanism

02

Where it starts: broccoli sprouts

One of nature's richest sources of the precursor to sulforaphane.

03

Measured in a clinical trial: everyday pollutants

Sprout-eaters cleared the pollutant benzene 61% faster.

04

Measured in a clinical trial: healthy glucose metabolism

Concentrated broccoli sprouts supported healthy fasting glucose.

05

The depth of the research

25+ years of study. Dozens of human trials.

107

µmol glucoraphanin per gram, third-party verified

3x

the sulforaphane of the competitive average seed we tested

100x

up to 100x the glucoraphanin of a head of store broccoli

Everyone knows vegetables are good for you. What is new is that the single most studied source of sulforaphane can now be grown on your counter, harvested fresh, and eaten hours later, by you, for less than $1 a serving.

Start growing

25% off your Starter Kit · seed to plate in 5 days

Loved for the taste. Trusted for the science.

“My family and I love our sprouter. It’s so easy to grow quick sprouts and very enjoyable to see the process all happen within a few days.”

EL

“If you want to feel like a gardening wizard with minimal effort, this device is your new best friend! I love growing healthy food right in my kitchen!”

Jeremy B.

“Really happy to have finally started my sprouting journey - this kit makes it super easy to eat organic veggies!”

Susan R.

“I love broccoli sprouts and enjoy growing them rather than purchasing in the grocery store. My first time growing them was easy, fun and delicious!”

Patricia R.

Get the Kit & Save 25% on your Sprouter + 1st bag, when you subscribe

Seed refills ship monthly at 10% off.

The Sprouter

Purpose-built for countertop sprouting

25% off

High-Sulforaphane Broccoli Seeds

8oz included, 16oz with two sprouters

25% off first pouch

Stainless Steel Scooper

For easy measuring

Free

$12.99

Sprouting App

Track all of your grows

Free

$6.99

$19.98 in extras, included free. Build your kit to see your price and total savings.

Choose how you want to start.

Same seed. Same guarantee. Pick how often you want to grow.

One time purchase

The Starter Kit

$136.99one time

Try it once. No subscription.

Buy once

★ MOST POPULAR

Subscribe & save 25% off your first order

The Daily Habit

$136.99

$102.74first order

You save $34.25

Then $33.29/mo for your 8oz seed refill. 10% off, always.

One fresh batch at a time, always stocked.

Subscribe & Save

BEST VALUE

Subscribe & save 25% off your first order

The Continuous Harvest

$249.97

$187.48first order

You save $62.49

Then $44.99/mo for your 16oz seed refill. 10% off, always.

Two sprouters means you stagger your grows, so there is always a batch ready. For singles, couples, or families.

Harvest Continuously

Every order comes with the same promise: seed to plate in 5 days or we make it right, plus a 1 year sprouter warranty.

How it compares

See how it stacks up.

Effort

Freshness

Nutrition

Control

Cost/serving

2 min/day

Minutes old

Peak

You grew it

Less than $1

Store veggies

Errand

Weeks old

Faded

$2-6

DIY sprouting

Fussy

If it works

If it works

If it works

Less than $1

Supplements

Easy

Not fresh

Isolated

$1-3

How it compares

See how it stacks up.

EFFORT

2 min/day

FRESHNESS

Minutes old

NUTRITION

Peak

CONTROL

You grew it

COST/SERVING

Less than $1

Store veggies

EFFORT

Errand

FRESHNESS

Weeks old

NUTRITION

Faded

CONTROL

None

COST / SERVING

$2-6

DIY sprouting

EFFORT

Fussy

FRESHNESS

If it works

NUTRITION

If it works

CONTROL

If it works

COST / SERVING

Less than $1

Supplements

EFFORT

Easy

FRESHNESS

Not Fresh

NUTRITION

Isolated

CONTROL

None

COST / SERVING

$1-3

vs

On everything

The kind of healthy you'll actually keep doing.

Salad

Grain bowl

Sandwich

Smoothie

Sulforaphane is the reason to start. Taste is why you keep going. Fresh sprouts are crisp and a little peppery, and they are good on almost anything: salads, grain bowls, avocado toast, tacos, soups, even a smoothie. And since you can grow different varieties, it does not get boring.

Start growing

25% off your first order · cancel anytime

Grow Easy Guarantee

Go seed to plate in 5 days, if you don't, we'll make it right within 30 days of purchase. Plus a 1-year warranty on your sprouter, if anything breaks, we'll replace it.

Try it risk-free

THE SPROUT KING

Hi I’m Doug.

Thirty years ago I started sprouting and never stopped. I wrote The Sprout Book because I believed anyone could do this, then built the sprouter because the tools kept failing people who tried.

No land, no sunlight, no experience. A couple minutes a day on your own counter. Let's grow!

As heard on

Slide 1 of 4

As seen on:

Genius Life - Max Lugavere

As seen on:

The Rich Roll Podcast

As seen on:

The Proof – Simon Hill

As seen on:

Runningman Fest

As seen on:

Genius Life - Max Lugavere

As seen on:

The Rich Roll Podcast

As seen on:

The Proof – Simon Hill

As seen on:

Runningman Fest

As seen on:

Genius Life - Max Lugavere

Watch Doug on Shark Tank

FAQs

General

Growing

Troubleshooting

Seeds & Nutrition

The Sprouter

Order, Shipping & Subscription

What are sprouts, exactly?

A sprout is a seed that has woken up. Give a dry seed water and a few days, and it starts building a plant: growing a root, unfurling a stem, and synthesizing nutrients it never had while it was dormant.

You eat the whole thing, seed and stem and all, usually three to five days in. No soil, no sunlight, no garden. Just seeds, water, and about a minute of your attention twice a day. Welcome to one of the most nutrient-dense foods on Earth!

Do I need a green thumb, a garden, or a sunny window?

How much time does this take every day?

How fast until I am actually eating something?

Which seed should I start with?

What is the difference between sprouts and microgreens?

Will I actually stick with it?

How do I grow sprouts, start to finish?

Measure your seed into the sprouter with the stainless steel spoon. Cover with water and soak, usually six to eight hours for leafy seeds and longer for legumes. Check your seed bag or the product page for the specific seed, since soak time is the one thing that changes seed to seed.

Then rinse and drain twice a day, morning and evening, for the next three to five days (depending on the seed). About a minute each time, as easy as brushing your teeth! The sprouter does the rest: it holds the angle for you, so water drains out completely and air flows perfectly for the best growing conditions.

When the sprouts fill the jar, harvest. That is the whole process.

No soil, no sun, no green thumb required!

Watch this video

How much dry seed do I use?

How do I know when they are ready?

How do I harvest?

How do I store them, and how long do they last?

Does my kitchen need to be a certain temperature?

Do I need to sanitize my seeds?

What if I go away for a few days?

I see white fuzz. Is this mold?

When the sprouts fill the jar, harvest. That is the whole process.

No soil, no sun, no green thumb required!

Watch this video

My sprouts are growing slowly

My sprouts did not grow at all

My broccoli sprouts smell

My sprouts taste too spicy or bitter

My sprouter leaks when I rinse

My jar broke

Why eat sprouts at all?

A dry seed is a whole plant in storage. Germination wakes it up, and the seed starts building: vitamins it did not have while dry, protein your body can absorb more easily, and minerals it had locked away.

You also eat them hours from harvest rather than days from a truck, which matters because some nutrients degrade meaningfully during storage and transport.

And you know exactly what is in them, because nothing is. Seeds, water, and you.

What is sulforaphane?

How much more sulforaphane do sprouts have than regular broccoli?

What makes fresh sprouts different from a sulforaphane supplement?

What is the difference between your Organic Broccoli and your High-Sulforaphane Broccoli?

How did you get the levels that high? Is this a GMO?

Are your seeds organic and non-GMO?

What is SproutArmor?

Are sprouts safe to eat?

Can I just buy seeds at the grocery store or a garden center?

How many servings are in a bag of seeds?

Why not just use a mason jar?

You can, and plenty of people start there. Our founder once sprouted in a sock to prove a point. It worked.

The reason most people quit DIY sprouting is that mason jars fail at the two things that matter. The neck traps water, which is how mold starts, and the mouth is narrow, which limits airflow and makes harvesting awkward. Our sprouter has straight walls that drain completely and a mouth 125% wider than a wide-mouth mason jar. Both are patented.

There is also what your food touches. Sprouts in our sprouter contact only glass and stainless steel, never plastic. And it holds enough to grow food rather than garnish.

What is it made of?

How big is it?

Is it dishwasher safe?

Should I get a second sprouter?

What is the warranty?

When will my order ship?

Everything ships within two business days.

How long it takes to reach you depends on where you are and which shipping method you chose at checkout. You'll get tracking as soon as your order moves. If anything is ever running behind, we'll tell you rather than leave you wondering.

Do you offer free shipping?

Where do you ship?

How does the seed subscription work?

How do I pause, skip, or cancel my subscription?

My discount code is not working

What is the Grow Easy Guarantee?

How do I reach a human?

The most studied compound in nutrition. Grown by you.

Recommended by Simon Hill, host of The Proof

Start growing

Grow Easy Guarantee · third-party verified · US shipping

70,000+ sprouters on countertops. 1.1 million pounds grown.

Customer reviews

4.9

/ 5

200 reviews

5

92%

4

8%

3

0%

2

0%

1

0%

Write a review

Reviews200

All ratings1 star2 stars3 stars4 stars5 starsWith media

1 month ago

Camille V.

Verified buyer

I love my new sprouting system! So healthy and delicious.

2 months ago

Dan P.

Verified buyer

It’s the best. No smell like the other kids. Highly Recommend.

2 months ago

Anne A.

Verified buyer

Works great ! Ease to use and grow !🌱

2 months ago

Patricia R.

Verified buyer

I love broccoli sprouts and enjoy growing them rather than purchasing in the grocery store. My first time growing them was easy, fun and delicious!

3 months ago

Roe B.

Verified buyer

Never did this before! It was too easy! Now I can eat the sprouts all year long! In the store they are expensive and the quality can't compare to growing them yourself.

Show more

© 2026 The Sprouting Company. All rights reserved.

Subscribe to the

Grow Club.

Recipes, growing guides, nutrition, and more.

The Sprouting Company is committed to serving people with disabilities and ensuring everyone who visits our website has an engaging experience. We are actively working to make our website more accessible by implementing the Web Content Accessibility Guidelines (WCAG) 2.2 Level AA. During this process, you may encounter areas of the site that are still being improved. If you experience any issues with compatibility or accessibility, please contact us at support@thesproutingcompany.com, and we will work to identify and resolve them as quickly as possible. From time to time, The Sprouting Company may link to or include content from third-party providers. While we do not control third-party content, we welcome your feedback if you encounter any accessibility challenges so we can help address them where possible.

© 2026, The Sprouting Company | a brand of Wova Labs, Inc.

Shop

Learn

Help

Social

Grow your nutrition.

Grow your nutrition.

CloseRemove

Gifting has never been easier

Perfect if you're short on time or are unable to deliver your gift yourself. Enter your message and select when to send it.

To

To is required

Invalid

From

From is required

Invalid

Message

0/500

Message is required

Invalid

Recipient's email

Invalid

Recipient's phone number

Invalid

Enter a mobile phone number

Email and/or phone number is required

When should we send your message?

Select a method for your message

Your message will be sent when you complete your order

Your message will be sent at the selected date and time

Date

Date is required

Select a date in the future

Time12:00 AM12:30 AM1:00 AM1:30 AM2:00 AM2:30 AM3:00 AM3:30 AM4:00 AM4:30 AM5:00 AM5:30 AM6:00 AM6:30 AM7:00 AM7:30 AM8:00 AM8:30 AM9:00 AM9:30 AM10:00 AM10:30 AM11:00 AM11:30 AM12:00 PM12:30 PM1:00 PM1:30 PM2:00 PM2:30 PM3:00 PM3:30 PM4:00 PM4:30 PM5:00 PM5:30 PM6:00 PM6:30 PM7:00 PM7:30 PM8:00 PM8:30 PM9:00 PM9:30 PM10:00 PM10:30 PM11:00 PM11:30 PM

Time is required

Select a time in the future

Your message will be sent when your order is delivered to your shipping address

Your message will be sent as soon as your gift is fulfilled (shipped)

Save messageAdd to cart

Powered by

Message saved

Gift card added to cart!

Message removed

Add a gift message 🎁Edit gift message 🎁

Check the balance of your gift card

Searching...

Not found

Expired on

Balance:

Initial balance:

Expires on:

CloseRemove

Gifting has never been easier

Perfect if you're short on time or are unable to deliver your gift yourself. Enter your message and select when to send it.

To

To is required

Invalid

From

From is required

Invalid

Message

0/500

Message is required

Invalid

Recipient's email

Invalid

Recipient's phone number

+1

244 results found

No results found

Invalid

Enter a mobile phone number

Email and/or phone number is required

When should we send your message?

Select a method for your message

Your message will be sent when you complete your order

Your message will be sent at the selected date and time

Date

Date is required

Select a date in the future

Time is required

Select a time in the future

Your message will be sent when your order is delivered to your shipping address

Your message will be sent as soon as your gift is fulfilled (shipped)

Save messageAdd to cart

Powered by

Message saved

Gift card added to cart!

Message removed

www.thesproutingcompany.com

www.thesproutingcompany.com is blocked

This page has been blocked by an extension

ERR_BLOCKED_BY_CLIENT

Reload

This page has been blocked by an extension

www.thesproutingcompany.com

www.thesproutingcompany.com is blocked

This page has been blocked by an extension

ERR_BLOCKED_BY_CLIENT

Reload

This page has been blocked by an extension

www.thesproutingcompany.com

www.thesproutingcompany.com is blocked

This page has been blocked by an extension

ERR_BLOCKED_BY_CLIENT

Reload

This page has been blocked by an extension

www.thesproutingcompany.com

www.thesproutingcompany.com is blocked

This page has been blocked by an extension

ERR_BLOCKED_BY_CLIENT

Reload

This page has been blocked by an extension

shop.app

shop.app is blocked

This page has been blocked by an extension

ERR_BLOCKED_BY_CLIENT

Reload

This page has been blocked by an extension

Gorgias Shopper Engagement

Gorgias live chat campaigns

Gorgias Floating ChatGorgias Floating Chat

Gorgias live chat messengerGorgias Live Chat

Early Black Friday Cart

Close Cart

You are $1.00 away from a free The Sprouting Cookbook ebook (GIFT)!

ANY ORDER

$100

$200

$300

Progress: 0%

Nothing growing in here yet

Try the all-in-one sprouting kit most people begin with.

Shop the Starter Kit

Add a gift messageEdit a gift message

Early Black Friday!

Stock up during the biggest sale of the year!

The Sprouter

Sale price$90.00Original price$99.99

Quantity12345

Add

Organic High-Sulforaphane Salad Mix

Sale price$36.00Original price$39.99

Quantity12345

Add

Organic High-Sulforaphane Broccoli

Sale price$45.00Original price$49.99

Quantity12345

Add

Powered by Rebuy

Continue to Checkout

Seed to plate in 5 days

1 year sprouter warranty