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How to Grow Broccoli Sprouts (& Why We All Should)

March 16, 2018 by Katie Wells
Benefits of Broccoli Sprouts
Table of Contents[Hide][Show]
  • Broccoli Sprouts = High in Sulforaphane
  • Why Not Just Eat Broccoli?
  • Reasons to Grow Your Own Sprouts+−
    • Save Money by Growing Your Own
    • Plus, It is Soooo Easy
    • No Time/Don't Like Sprouts?
  • How to Grow Broccoli Sprouts: Ingredients & Supplies Needed
  • Broccoli Sprouts Growing Instructions+−
    • To Store the Sprouts:
  • Ways to Increase Sulforaphane Content in Broccoli Sprouts

If you’ve ever heard of sulforaphane, you’ve probably heard about broccoli sprouts and why they are one of the healthiest foods on the planet. If you haven’t, let me provide a brief case for why these humble sprouts should be growing in all of our kitchens.

Broccoli Sprouts = High in Sulforaphane

I wrote an entire ode to sulforaphane and why I love it here, but the short version is that this plant compound:

  • helps protect against cancer
  • benefits the heart
  • boosts the brain
  • increases glutathione
  • supports natural detoxification
  • should be more popular than the Kardashians, but somehow isn’t … maybe because it is hard to spell?

And broccoli sprouts are an incredible rich source of sulforaphane and you can grow them in your kitchen for pennies. In fact, one of the first things my thyroid doctor recommended after my Hashimoto’s diagnosis was consuming raw broccoli sprouts daily for the sulforaphane.

(If you’re thinking “ew…broccoli sprouts?” have no fear… there is also a great supplement option. Read on!)

Why Not Just Eat Broccoli?

Cruciferous vegetables have many benefits and studies find that eating them a few times a week reduces cancer risk by 30% or more. But when it comes to sulforaphane, full-grown broccoli doesn’t even come close to these power-packed sprouts. In fact, 3-4 day old broccoli sprouts have up to 100x the amount of sulforaphane as mature broccoli.

On top of that, cooking destroys sulforaphane so unless you want to chow down on several pounds of raw broccoli a day, you likely won’t get much (if any) sulforaphane.

TIP: Cooked broccoli (and other cruciferous vegetables) are still healthy in many ways, and Dr. Rhonda Patrick offers a tip for increasing the sulforaphane content in cooked veggies: sprinkle them with dried mustard seed powder. Read this post if you’re interested in why this works, but in short, the mustard seed replaces an enzyme that is needed for sulforaphane production but that is destroyed in cooking.

Reasons to Grow Your Own Sprouts

So, now that we’re hopefully big fans of broccoli sprouts and understand why they should be a regular part of a healthy diet, let’s talk about why we should grow them ourselves.

Thanks to the work of researchers like Dr. Patrick, news has spread about the benefits of broccoli sprouts. I’ve seen broccoli sprouts in many stores, including all three of our local grocery stores. But these store-bought sprouts are expensive and we can’t really know how fresh they are. Remember that sulforaphane content spikes on day 3-4 after the seed sprouts and store-bought sprouts are likely much older than this.

Save Money by Growing Your Own

Store-bought sprouts are also really expensive compared to growing your own. In fact, you will spend up to 20x as much! Sprouts from the store can run $1-2 an ounce, but you can grow them at home for $0.10-0.20 an ounce or less (if you buy broccoli seeds in bulk like I do).

With very basic equipment, you can grow 15-16 pounds of broccoli sprouts per pound of broccoli seeds. To put this in perspective, a 3 ounce container of sprouts is $6 at my local store. That ends up being about $32 a pound for sprouts. An entire pound of seeds costs less than that (and much less if you buy in bulk). In fact, I buy 5 pounds of broccoli seeds for $40 and grow up to 80 pounds of broccoli seeds for that, making them $0.50 a pound.

Plus, It is Soooo Easy

There are some vegetables that I think are worth buying because they are too time intensive to grow or take up too much room in the garden. Cabbage, celery, fennel, and some lettuces are all on this list. Broccoli sprouts are not. They are almost foolproof to grow, are ready to eat in just a few days, and are healthier than almost any other vegetable you can grow.

Did I mention it’s easy? Here’s what you’ll need and how to do it:

No Time/Don’t Like Sprouts?

Many sulforaphane supplements aren’t well absorbed by the body since it is difficult to stabilize. The one exception I make is for this brand which developed a unique new process for naturally stabilizing sulforaphane. This is a great option if you don’t have the time or desire to harvest and juice broccoli sprouts every day. We take it when we’re busy or traveling. (They have a kids’ version too!)

How to Grow Broccoli Sprouts: Ingredients & Supplies Needed

  • Broccoli Seeds: I buy in bulk at 1 pound, 2 pounds, or 5 pounds (best value)
  • Quart or half-gallon wide-mouth mason jars
  • Wire sprouting lids for the mason jars
  • Sprouting jar holders (optional) or a glass bowl that can hold up the jar
  • Steel tray to hold jars (optional)

Broccoli Sprouts Growing Instructions

  1. Place two tablespoons of broccoli seeds in a wide-mouth mason jar and cover with a few inches of filtered water.
  2. Put on a sprouting lid and place the jar in a slightly warm, dark place for 8-12 hours so they can begin to sprout. I’ve tried various different places and find this works best to place the jar on the counter above my dishwasher right before I go to bed. I cover the jar with a towel and start the dishwasher so a small amount of heat comes through the counter and helps the seeds sprout more quickly. That said it also works to leave the jar anywhere on the counter or place it inside a cabinet.
  3. The next morning (or at least 8 hours later), drain off the water and rinse with fresh water.
  4. Rest the mason jar upside down at an angle on a sprouting jar holder or inside a bowl so that any remaining water can drain. Continue to keep the jar in a slightly warm but mostly dark place during this time.
  5. Rinse the sprouts 2-3 times a day and place back on the jar holder or bowl after each rinse. I rinse at meal times so I remember. After a few days, all of the seeds should start to break open and grow.
  6. Keep up with the rinsing and keep the seeds in a darkish place until they have sprouts about an inch long. At this point, they can tolerate some indirect sunlight or low light exposure.
  7. Eat the seeds once you see some dark green leaves (usually 3-4 days after the seed starts to sprout). This whole process usually takes about a week. I start a new batch every 1-2 days so we have a constant supply.

To Store the Sprouts:

Wait at least 12 hours from the last rinse so all remaining moisture can drain off. Replace the sprouting lid with a regular mason jar lid or transfer to an airtight container. Place in the refrigerator and store for up to a few weeks (though I recommend using them as quickly as possible).

Ways to Increase Sulforaphane Content in Broccoli Sprouts

These adorable sprouts are already one of the best sources of sulforaphane. If you want to be an overachiever, there are a couple of ways to increase the sulforaphane content before you eat them. The method I’m about to recommend is counterintuitive … heat them up.

I know, I know, I already said not to heat them above 158 degrees. But it turns out that heating them up to just below that actually increases the sulforaphane content. Heating to an exact temperature may also deactivate sulforaphane nitriles, which aren’t as beneficial. If we hit an exact temperature of around 158 degrees Fahrenheit, it deactivates the sulforaphane nitrile and not the myrosinase needed for optimal sulforaphane.

Dr. Rhonda Patrick explains that the sweet spot is heating to exactly 158 degrees Farenheight for 10 minutes. See her process in the video below. At her suggestion, I heat water and use a digital thermometer that beeps when it reaches temperature. As soon as the water hits 158, I pour it into a jar with the sprouts and set a timer for 1o minutes. Then, I let it cool and blend in a blender.

Fair warning: a broccoli sprout smoothie is an acquired taste. I do it for the health benefits, but as you’d expect with a sulfur-containing food, it has a strong taste.

This article was medically reviewed by Dr. Scott Soerries, MD, Family Physician and Medical Director of SteadyMD. As always, this is not personal medical advice and we recommend that you talk with your doctor.

Have you ever grown broccoli sprouts? Will you join the sulforaphane fan club and start now? If you already grow broccoli sprouts, tag me (@wellnessmama) in your photos on social media so I can see!

Related Posts

How to Grow Sprouts in Your Kitchen for Nutritious and Inexpensive Food With Doug Evans336: How to Grow Sprouts in Your Kitchen for Nutritious and Inexpensive Food With Doug EvansSulforaphane: The “Broccoli Molecule” That Slows Aging, Fights Cancer, & Boosts Immune Health With BrocElite346: Sulforaphane: The “Broccoli Molecule” That Slows Aging, Fights Cancer, & Boosts Immune Health With BrocEliteThe Benefits of Sprouts and MicrogreensThe Health Benefits of Sprouts and MicrogreensBenefits of SulforaphaneSulforaphane Benefits: How It Slows Aging, Fights Cancer & MoreHow to Grow Sprouts in Your Kitchen- and why you shouldHow to Grow Sprouts In Your Kitchenstart a gardenIt’s Time to Bring Back Victory Gardens
Category: Health

About Katie Wells

Katie Wells, CTNC, MCHC, Founder and CEO of Wellness Mama and Co-Founder of Wellnesse, has a background in research, journalism, and nutrition. As a wife and mom of six, she turned to research and took health into her own hands to find answers to her health problems. WellnessMama.com is the culmination of her thousands of hours of research and all posts are medically reviewed and verified by the Wellness Mama research team. Katie is also the author of the bestselling books The Wellness Mama Cookbook and The Wellness Mama 5-Step Lifestyle Detox.

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Reader Interactions

Discussion (110 Comments)

  1. David

    March 18, 2018 at 4:49 PM

    You said As soon as the water hits 158, I pour it into a jar with the sprouts and set a timer for 1o minutes. Then, I let it cool and blend in a blender.

    The full jar of sprouts? That’s a lot of sprouts, then have to wait another 4-5 days until its done again to get more sprouts? Am I understanding that correctly? I am guess you make a few jars at a time, but in my experience I have used a half gallon jar to make broccoli sprouts and it fills it up pretty much almost to the top… How much sprouts in the smoothie ????

    Reply
    • Kiwiara

      June 28, 2019 at 9:51 PM

      Hi, I’m sorry my OCD needs more specific instructions.
      1.) How many days do you rinse 2-3x a day and put the jar back in a dark place?
      2.) How many days do you rinse 2-3x a day and put in indirect sunlight?

      Would it look like this:
      Day 1: Scoop, wash, soak overnight
      Day 2: Rinse, drain, dark place 2-3x
      Day 3: Rinse, drain, dark place 2-3x
      Day 4: Rinse, drain, dark place 2-3x
      Day 5: Rinse, drain, indirect sun 2-3x
      Day 6: Rinse, drain, indirect sun 2-3x
      Day 7: Rinse, Drain, indirect sun & 12 hrs later eat & store?

      Reply
  2. Alison

    March 18, 2018 at 3:04 PM

    I tried growing broccoli sprouts in my tray style seed sprouter, and they did not turn out so great – went smelly and not all the seeds sprouted, even though I rinsed 3x a day. I think the trays hold too much water over the tiny broccoli seeds. Mung beans and lentils turn out great though. I think I will try again using the jar method, as they can drain better. Have you heard about putting a little citric acid in the rinse water to prevent mold?

    Reply
  3. Travis Kleinfeld

    March 18, 2018 at 2:29 PM

    Recently, I ordered some broccoli sprout seeds. However, they weren’t available at the incredible price of forty dollars for five pounds as mentioned in the article. Is there such a deal still readily available? Please, let me in on where and how I can also make a similar purchase. Thanks!

    Reply
    • Katie - Wellness Mama

      March 19, 2018 at 2:19 PM

      Did you click the link in the article?

      Reply
      • Travis Kleinfeld

        March 19, 2018 at 2:38 PM

        I did click on the link. It looks like the price has doubled since you posted your article. l’m in Canada and even with exchange rate, 5 lbs for $110 ++ doesn’t add up. Thanks for your feedback and great article, though.

        Reply
        • Katie - Wellness Mama

          March 19, 2018 at 2:49 PM

          It’s probably due to Amazon.ca vs. Amazon.com. The prices are always changing, but it’s showing $44.00 for me here in the States…

          Reply
          • Jay Brown

            October 9, 2019 at 8:00 PM

            Do you buy conventional? It’s only a year + later but organic are $80. Wondering if you do conventional?

          • Katie Wells

            October 10, 2019 at 10:44 AM

            I buy organic whenever possible…

          • Pink

            April 5, 2020 at 9:30 PM

            The seeds show as not available and do you have a day by day what to do?

  4. Bob

    March 18, 2018 at 12:48 PM

    How come broccoli sprouts smell like Hell? Seriously I reached a point where I couldn’t sprout them anymore simply because they always have a foul odor. Is it the sulforaphane that is causing this?

    Reply
    • Jeni

      March 19, 2018 at 12:46 PM

      I tried to sprout some as well and it was horrid. Like dead animal stench. Maybe worse. However I didn’t look up how to do it, just put them in a shallow Pyrex with water. I think what I did wrong was not rinsing frequently – I’d be willing to try it again and rinse them. However they’re so tiny, I think it’d be hard to thoroughly rinse them without a dedicated setup like Katie suggests. Maybe I can rig one in a sieve? I don’t want to invest in any supplies until I know I won’t screw it up…
      Katie, any suggestions on how to rig a setup if I want to try again before buying special lids and racks etc? Thanks!

      Reply
      • Chuey

        June 7, 2019 at 1:19 AM

        You could actually do all this stuff without spending an extra penny! Thoroughly wash out (sterilize: boil for 10-15 minutes in water in a big ol’ stock pot) a mayo jar, or a jam jar (if you wanted to start small)… It would be preferable to use a screen lid for best drainage of the rinsed sprouts, and you don’t even have to remove the lid, just rinse and drain right through it.
        But if you want to use what you have on hand, get a cloth napkin and a rubberband, and fashion a lid from that. Free tip: using a pure *linen* napkin will ensure a sanitary set-up, bc linen actually has properties that supress ickies– some kind of miracle keeps stuff fresh longer. Possibly less likely to spoil, but don’t quote me. I stopped buying bagged salads and started storing my heads of rinsed lettuce in linen napkins and/or linen dishtowels. It is amazing how long they now last. (Same reasoning behind the linen-wrapped mummies in Egypt that still look somewhat like the guy they buried 4000 years later.)
        (Linen–pure flax linen!) You can find a linen napkin at World Market for $4. And if you end up not doing sprouts, you still have a linen napkin!)
        I dont know why I can’t find the sprouting lids in any Walmart or Target around here, but good ol’ amazon has a few selections for pretty cheap, and some ship free. The only other thing you need is a wide mouth mason jar– I’m sure Big Lots has some…Oh! And the SEEDS! Amazon to the rescue again. Look for free shipping ones, organic, etc yada yada. Have fun ‘n Be healthy!

        Reply
        • Chuey

          June 7, 2019 at 1:20 AM

          GLASS mayonnaise jar!

          Reply
  5. Sam

    March 18, 2018 at 12:35 PM

    how dare you make money through the referral links to amazon by re-posting other people’s works, such as Dr.Patrick? provide the links to amazon, but don’t insert your code or just reference Dr.Patrick.

    Reply
    • Katie - Wellness Mama

      March 18, 2018 at 6:15 PM

      Not sure why you see that as a problem… I very clearly lay out our affiliate disclosure here: https://wellnessmama.com/affiliate-disclosure/. I also link back to her site in many posts and have the utmost respect for her and in no way am I ripping her off in any capacity…

      Reply
    • Hypatia

      June 14, 2018 at 5:43 PM

      There is nothing wrong with linking to books, etc, with affiliate links. How dare you say this site shouldn’t do what every single other site does, including Google. You should do your research about how the internet works.

      Reply
      • Chuey

        April 18, 2019 at 4:08 AM

        ^^^^^
        What she said.
        Blogs are how people with interesting ways of explaining stuff earn a living.

        So, if you don’t like it, to quote Chrissy Tiegen, “Just cool your tits and scroll on by!”

        Reply
  6. Katrina

    March 18, 2018 at 12:33 PM

    The super super easy way to grow broccoli sprouts, or any sprouts, is to buy organic potting mix, a rectangular food storage container (like for cookies), and a spray bottle.
    Cover bottom of plastic storage container in potting soil (a thick layer, about 1/2 inch).
    Spray with filtered or distilled water until saturated.
    Then sprinkle broccoli seeds in one layer all over soil.
    Spray again with water. (The soil and seeds will soak up quite a bit of water the first day.)
    Put container in dark closet, cupboard, etc.
    Spray with water about 3 times per day.
    Sprouts can be put out in indirect sunlight once they’re about an inch long and eaten once they get green. Just use kitchen scissors to clip sprouts off above soil.

    Reply
    • Hypatia

      June 14, 2018 at 6:02 PM

      You do not need soil to grow sprouts, nor do they need total darkness. You would only use soil if you were growing micro greens, and even then there are better methods than using soil. Sprouts do not need anything but water to grow.

      As for the comments about the broccoli sprouts smelling bad, I use Gardens Alive two tiered sprouter and haven’t had issues with smells or mold. Broccoli sprouts do smell like broccoli, but it isn’t a particularly bad smell. I rinse two-three times a day and put them in a sunny window on the last day of sprouting to green them up. The sun makes them a little crisper as well. I usually harvest on day 4 or 5, although I have gone as far as seven days before harvesting without issue.

      Reply
      • Dorothy

        April 13, 2020 at 2:53 PM

        I agree, sproting in a jar with water like Katy suggests is the way to go and little mess. She inspired me to try again after a while of no sprouts. It’s like a lot of things, making it a part of your routine makes it easier. I do have one main question and a few others. Is there an easy way to get rid of the hulls, or do you just eat them? How green should they get? Mine are still fairly light after a few days in indirect light. Also, does it make a difference whether you soak the seeds in daytime or at night, since they’re kept in the dark anyway? I keep my mason jar in a small bowl to help with the tilt and put it inside a smallish lunchbox, the kind with a hard plastic box inside. Then I zip it partly closed. Enjoying having this superfood again in smoothies and salads.

        Reply
  7. June

    March 18, 2018 at 10:20 AM

    Love your blog always great info. I plan to grow my own sprouts. But do you know how many so called reputable health experts that say we should not eat sprouts because we could get salmonella???? Propaganda is rampant!

    Reply
    • Mary

      March 26, 2018 at 1:38 PM

      Maybe that is referring to sprouts you buy in the store versus home grown.

      Reply
    • Chuey

      April 18, 2019 at 4:00 AM

      Google “safe sprouting methods” and prepare to be educated! I have seen similar comments here and there, and I think they are referring to store-bought sprouts. Knowing what I know now I am apalled that I used to buy alfalfa sprouts from the grocery store in the 70s (part of “what i know now” is that people don’t necessarily know what they are doing, and some even think hand washing is a waste of time).

      While I dont recall any recent news stories about anyone getting sick from store-bought sprouts, it sure could happen because just as they are at the right stage of development, they are constantly kept wet with those sprayer things in the produce dept. That’s why we need to be meticulous about draining between rinses, and only a couple times a day. Most important is Katie’s comment about top nutrition being available within a fairly short window, compared to the ones in the produce department hanging around for
      Heaven-knows-how-long.

      Reply
  8. Nancy

    March 16, 2018 at 7:07 PM

    It does not appear the broccoli seeds recommended are organic. Wouldn’t organic seeds be preferable?

    Reply
    • Chuey

      April 18, 2019 at 3:45 AM

      I just ordered some today on Amazon. Sorry I forget the seller but use the search terms “Certified Organic, non-GMO Broccoli seeds for sprouting”. On their product page you have a choice of sizes 4/8/16 oz, and up to 5 lbs. (not much difference in price between 4 and 8 oz). Most important is to select “Organic”, because the other option is “not”…!
      I have heard they do not taste like broccoli, which is my favorite veggie, but that they are not bad. I will hide any not-great taste by adding a big cup of frozen organic strawberries to my smoothie. Can’t wait!

      Reply
      • Tess

        April 1, 2020 at 10:27 AM

        Good grief, why does just about everyone act as if Amazon.com is the only place online to shop? Jeff Bezos is the richest man in the world and I cannot understand why everyone seems to want to make him richer, as if he is the only game in town! Amazon’s warehouses are sweatshops where bathroom breaks aren’t even given in a lot of them! There are MILLIONS of little people who sell things online; be an angel and shop with them!

        Reply
        • Tanya R

          November 18, 2020 at 11:25 AM

          God bless you for saying what I am constantly saying to everyone – STOP SHOPPING AT AMAZON – they will take over everything if we continually make them the go-to. You are absolutely right, there are SO many online sellers trying to make a living, why are we making this jerk more rich?

          Reply
    • Heather Van Shaar

      January 22, 2020 at 2:07 PM

      I followed the link to the seeds in Amazon, and it did have conventional seeds as default, but you can use the drop down menu to choose organic, and the other drop down menu to change the amount.

      Reply
  9. Shawna

    March 16, 2018 at 1:38 PM

    Maybe I missed it, but can eating them with salads and sandwiches provide the same benefits as drinking them as a smoothie?

    Reply
    • Lisa LP

      March 17, 2018 at 12:29 PM

      Yes, I would agree with you.

      Reply
  10. Matt

    March 16, 2018 at 10:00 AM

    For whatever reason I have not been able to see comments on the site for awhile My question here is whether broccoli sprouts can be grown in trays as opposed to jars

    Reply
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