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Horseradish Root Facts: A Useful Plant and a Tasty Sauce

Updated on July 11, 2019
AliciaC profile image

Linda Crampton is a teacher with an honors degree in biology. She enjoys exploring nutrition as well as the culture and history of food.

Horseradish root
Horseradish root | Source

A Flavorful Plant

Horseradish is a flowering plant that has an edible root with a very pungent and flavorful taste. The grated root is a popular condiment and adds a delicious touch to foods. It's generally eaten in small quantities due to its strong taste and its ability to make the eyes water. Even small amounts of the root may have health benefits, however.

Horseradish has been used since ancient times as both a food and a medicine. It grows in the wild and as a cultivated plant. Grated horseradish root and horseradish sauce are tasty additions to meat, mashed potatoes, vegetables, and even fruit. The grated root is mixed with vinegar and a little salt (if desired) to make a plain sauce or added to a product such as yogurt or mustard to make a creamy sauce.

Horseradish leaves are edible and can be used like other greens.
Horseradish leaves are edible and can be used like other greens. | Source

How Did Horseradish Get Its Name?

Horseradish is not a radish, despite its name. The word radish comes from the Latin word radix, which means “root”. Two theories attempt to explain why the plant is known as a "horse" radish. When the plant was first discovered in central Europe it was called meerrettich (sea radish) by the German people, since it was an edible root that grew by the sea. It's possible that the name was mispronounced in English as mare radish, which later changed to horseradish. Another theory is that the root was named after horses because it’s so large. The word horse was once used as an adjective to describe big, strong, or coarse objects.

A horseradish plant has large leaves and attractive white flowers.
A horseradish plant has large leaves and attractive white flowers. | Source

Grating, Grinding, or Chopping the Root

The intact horseradish root has very little odor. When the root is grated, ground, or chopped, however, enzymatic activity causes the release of volatile oils from cells. These oils produce the strong taste and smell of fresh horseradish. It’s advisable to grate or process horseradish near an open window or in an area with good ventilation and to avoid getting the concentrated vapor in the eyes.

As time passes, more and more oils are released from grated horseradish, making the taste of the root stronger and hotter. The addition of vinegar to the root stops the enzymatic activity that produces the oil. A person therefore has some control over the strength of the horseradish. If the vinegar is added soon after grating, the horseradish will be milder than it would be if the vinegar is added later on in the reaction.

How to Make Horseradish Sauce

Where to Find Horseradish

The best flavor and nutritional value can be found in a homemade horseradish sauce. You may be able to find pre-ground roots in your local stores. These are more convenient to use in a sauce recipe than intact roots but may not be as nutritious. Prepared horseradish sauces sometimes contain unhealthy ingredients, such as sugar, artificial flavors and colors, and preservatives. Some brands of sauce are healthier than others, however.

Your local produce store may sell horseradish roots, but in my area I need to go to a specialty market or an organic food store to find the roots. It's also possible to grow horseradish in a garden or a large container. Some gardeners prefer keeping the plants in containers because they can spread aggressively in gardens.

According to the International Horseradish Festival website, the United States produces an estimated twenty-four million pounds of horseradish roots each year. The ground roots produce six million gallons of sauce.

How to Make a Creamy Sauce

Making Horseradish Sauce at Home

A simple and healthy sauce can be made by removing the skin of a horseradish root, grating the root into fine pieces with a kitchen grater, and then mixing the grated horseradish with a little vinegar. Salt can be added if desired. Horseradish sauce is best served right away. When it's stored, its color gradually darkens and its flavor fades.

The sauce can also be made by placing peeled horseradish pieces in a food processor with about two tablespoons of water. Grind the horseradish into fine pieces, then add two tablespoons of vinegar (and a pinch of salt if you wish) and pulse with the food processor.

If you prefer a creamy horseradish sauce, mix the grated horseradish and vinegar mixture with sour cream or yogurt. Drain the excess liquid if necessary before adding the horseradish to the sour cream. Some people like to add extra ingredients to the sauce, such as garlic, chives, other herbs, and pepper. Grated horseradish also goes well with mustard and mayonnaise.

Raw horseradish is rich in flavor. When it's cooked, it loses some of its nutrients, hotness, and pungency and becomes sweeter in taste. Like the raw root, however, cooked horseradish adds an interesting flavor to meals.

Keep horseradish sauce refrigerated in a sterilized, tightly sealed jar if you don't use it right away. Homemade horseradish sauce containing only the grated root, vinegar, and salt should remain in good condition for three to four weeks.

Meatballs with horseradish sauce is a traditional meal in some parts of the world.
Meatballs with horseradish sauce is a traditional meal in some parts of the world. | Source

Traditional Uses of the Root

Horseradish is a popular addition to many foods, including:

  • mashed potatoes
  • root vegetables such as mashed turnips, rutabagas, parsnips, and beets
  • meat
  • fish and seafood
  • egg dishes
  • stews and soups
  • vegetable dips
  • fruits such as apples and pears

Horseradish is also added to cocktail sauce, which is used in shrimp cocktails. The sauce is a mixture of ketchup and other substances. In the United States, one of the other substances is generally horseradish.

The root is often mixed with tomato juice. It can add a bite to both alcoholic and non-alcoholic beverages containing the juice. A traditional Bloody Mary cocktail contains tomato juice, vodka, horseradish, and Worcestershire sauce. Other ingredients are often added to the cocktail to make a complex and tasty mixture.

Aoli is a traditional Mediterranean sauce made from crushed garlic mixed with olive oil and salt. To make a horseradish aoli, people generally mix horseradish and garlic with other ingredients to make a creamy sauce. The other ingredients may consist of mustard, egg yolk, and lemon juice or mayonnaise and lemon juice as well as salt, pepper, and herbs.

Foods prepared for a Passover Seder, including horseradish root
Foods prepared for a Passover Seder, including horseradish root | Source

Horseradish root is an important part of a Passover Seder meal. This meal is eaten to commemorate the flight of the Jewish people from slavery in Egypt to a free life in the promised land. Horseradish and the tears that it can produce when it's eaten are symbols of the pain of slavery.

How to Grow Horseradish or Armoracia rusticana

Nutrients in Horseradish Root

Horseradish belongs to the Brassicaceae family of plants, which is also known as the Cruciferae family. The family includes broccoli, cabbage, cauliflower, Brussels sprouts, kale, cress, watercress, radishes, mustard, and wasabi as well as horseradish.

Horseradish root is normally eaten in small quantities, which may limit the amount of nutrients that it provides. Even a tablespoon of raw horseradish provides a significant amount of vitamin C, however. Horseradish also contains fiber, folate, and smaller amounts of other vitamins and minerals. It's low in fat but is relatively high in sodium compared to other edible roots. Like all plants, it contains no cholesterol.

The phytonutrients in a normal serving of horseradish may be significant, as described below. Unlike nutrients, phytonutrients (or phytochemicals) aren't essential for our survival. They are thought to fight certain diseases, however, and are considered to be important for this reason. Phytonutrients are found only in plants, which is one reason why nutritionists recommend that we include lots of plants in our diet.

The leaves of horseradish plants are edible and are often called horseradish greens. They reportedly have some of the pungency of the root. I love horseradish root, but I've never eaten the leaves.

Harvesting and Using Horseradish From a Garden

Glucosinolates and Isothiocyanates

Like other members of the family Brassicaceae, horseradish is thought to have important health benefits. When horseradish is chopped, grated, or chewed, the damage to cells causes an enzyme called myrosinase to be released from its storage area inside the cells. This enzyme reacts with horseradish chemicals known as glucosinolates to form isothiocyanates. The isothiocyanates are present in the volatile oil released from the root's cells. They might reduce the risk of a person developing cancer.

One of the glucosinolates in horseradish is sinigrin. Myrosinase converts sinigrin to allyl isothiocyanate, the same chemical found in mustard oil. Allyl isothiocyanate is the main contributor to the pungent taste of horseradish and the sensation of heat that it produces. In nature, it helps to repel animals that are attacking the plant. Like other isothiocyanates, allyl isothiocyanate may help to prevent cancer. More research is needed to confirm the actions and benefits of the chemical in our body, however.

Researchers at the University of Illinois have found that horseradish is especially rich in glucosinolates. In fact, they say that it has ten times more than the equivalent amount of broccoli. This means that the small quantity of horseradish used as a condiment could provide a significant quantity of glucosinolates. In 2016, the researchers found evidence that alkyl isothiocyanate from horseradish activates enzymes that break down certain cancer-causing molecules. Hopefully the researchers will eventually show that this happens inside our body.

The team suggests that AITC (allyl isothiocyanate) is a good dietary anti-carcinogen, not only because it activates the enzyme responsible for detoxifying cancer-causing molecules, but also because a large proportion of it, 90 percent, is absorbed when ingested.

— University of Illinois News Release
Salmon salad with rye bread, watercress, and creamy horseradish sauce
Salmon salad with rye bread, watercress, and creamy horseradish sauce | Source

Possible Health Benefits of Horseradish

There are many traditional uses of horseradish with respect to health. At the moment, there isn't much scientific evidence to support these uses. This doesn't necessarily mean that they are worthless. It does mean that we should be cautious when we consider the claims, however.

Food amounts of horseradish should be safe for an otherwise healthy person. An excessive intake of horseradish may not be safe and should be avoided. The condiment may irritate the digestive tract and make some intestinal problems worse. It may also cause irritation in other parts of the body. A doctor should be consulted about major health problems and about minor ones that don't respond to horseradish treatment.

Horseradish has traditionally been used in folk medicine to clear the sinuses and remove mucus from the respiratory passages. It's still used for these purposes today. It has also been used to fight coughs, colds, and other infections as well as to treat gastrointestinal problems caused by food poisoning. Respiratory illnesses and food poisoning (or foodborne illness) can sometimes be serious. Medical help should be sought if this is the case instead of trying to self-treat the problem with horseradish.

The allyl isothiocyanate in horseradish may be antibacterial. The chemical has been found to kill bacteria outside the body and may be useful in food preservation. We don't know if allyl isothiocyanate is also antibacterial inside the human body, however, or if there is a sufficient amount of the chemical in a typical serving of horseradish to be significant.

Horseradish sauce and beets
Horseradish sauce and beets | Source

A Delicious Condiment

Horseradish is a delicious condiment to add to the diet, especially in its simplest form—grated horseradish root mixed with vinegar. Its nutritional and potential health benefits are an added bonus.

It may take you a while to get used to the hot taste if you've never used horseradish before, so start with a tiny amount to begin with. Also remember to be careful if you grate or chop horseradish at home. The fumes can be very irritating. The preparation process is very worthwhile, though. Fresh horseradish is both tasty and healthy.


© 2011 Linda Crampton


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    • AliciaC profile imageAUTHOR

      Linda Crampton 

      22 months ago from British Columbia, Canada

      I like eating horseradish too, Peggy. It's a tasty condiment. Thanks for the visit.

    • Peggy W profile image

      Peggy Woods 

      22 months ago from Houston, Texas

      I have never grown horseradish and find it interesting that it can spread rapidly in a garden. This was very informative. I do like eating horseradish in mashed potatoes, cocktail sauce for shrimp, an accompaniment for beef and in Bloody Mary drinks. Thanks for informing us about possible health benefits.

    • AliciaC profile imageAUTHOR

      Linda Crampton 

      6 years ago from British Columbia, Canada

      Thank you very much for the comment, MJ. I appreciate it! Horseradish is one of my favorite condiments, too.

    • MJennifer profile image

      Marcy J. Miller 

      6 years ago from Arizona

      Alicia, I love horseradish -- but have never grown it or made my own sauce. This will inspire me to try it, although the critters here are pretty harsh on anything I try to grow. I am surprised to hear horseradish is a cruciferous vegetable; I never made that association.

      Thanks for the interesting hub about one of my favorite condiments --


    • AliciaC profile imageAUTHOR

      Linda Crampton 

      7 years ago from British Columbia, Canada

      Thanks for the advice, Bud.

    • profile image


      7 years ago

      Movie Master,be careful about planting horseradish in your main garden,as horseradish spreads very quickly and eventually it will overtake your garden.I isolate mine in a four foot by four foot container.

    • AliciaC profile imageAUTHOR

      Linda Crampton 

      8 years ago from British Columbia, Canada

      Hi, Jeanne. After ten minutes the horseradish should have been very hot! Perhaps the horseradish root that you were using didn't contain many of the chemicals that produce the hot sensation. You could try using horseradish from another store, or adding the vinegar sooner than ten minutes after grinding in case too many of the volatile oils are escaping before the ten minutes are up.

    • profile image


      8 years ago

      How long after grating/grinding can you wait to add the vinegar? My husband loves it super hot and even though I waited 10 min. it still wasn't hot enough for him??

    • AliciaC profile imageAUTHOR

      Linda Crampton 

      8 years ago from British Columbia, Canada

      Hi, b. Malin. Thanks for the visit and the comment. Yes, horseradish certainly adds a zing to foods! It's one of my favorite condiments.

    • b. Malin profile image

      b. Malin 

      8 years ago

      I too Love Horseradish it add the Zing to Shrimp, Fish, just about anything! And it certainly cleans out ones Sinuses. Wonderful Hub on the Health Benefits and the many uses for Horseradish, Alicia. Thanks for sharing!

    • AliciaC profile imageAUTHOR

      Linda Crampton 

      8 years ago from British Columbia, Canada

      Thank you very much, kashmir56! I'm glad that you found the hub useful.

    • AliciaC profile imageAUTHOR

      Linda Crampton 

      8 years ago from British Columbia, Canada

      Hi, Maren Morgan M-T. The sensation that you felt was probably due to the horseradish. Freshly prepared horseradish is much stronger than bottled horseradish sauce bought in the stores!

    • kashmir56 profile image

      Thomas Silvia 

      8 years ago from Massachusetts

      Thanks for sharing this great information about horseradish and also for the great horseradish sauce recipe !

      Useful and vote up !!!

    • Maren Morgan M-T profile image

      Maren Elizabeth Morgan 

      8 years ago from Pennsylvania

      I had some freshly made horseradish that just about closed up my throat. Is that the vinegar part or the fresh horseradish? It is powerful stuff when it is fresh.

    • AliciaC profile imageAUTHOR

      Linda Crampton 

      8 years ago from British Columbia, Canada

      Hi Danette. I've read about the Collinsville horseradish festival. I think that would be an interesting and fun event to attend! This year's festival is over, but the next one takes place on June 2nd and 3rd in 2012. I would visit the festival if I lived nearer to Illinois.

      I read an interesting fact on the Collinsville International Horseradish Festival website - the International Herb Association has designated horseradish as the herb of the year in 2011!

    • Danette Watt profile image

      Danette Watt 

      8 years ago from Illinois

      I have never had fresh horseradish, just the stuff from the bottle. I live near Collinsville, IL, that claims to be the horseradish capital of the world. They have an annual festival but I've never been there, maybe I should go this year and check out the fresh horseradish.

    • AliciaC profile imageAUTHOR

      Linda Crampton 

      8 years ago from British Columbia, Canada

      Thank you very much for the lovely comment and vote, Prasetio!! I think that horseradish is delicious. It's a tasty condiment to add to all sorts of foods. If you try horseradish, I hope that you like it!

    • prasetio30 profile image


      8 years ago from malang-indonesia

      Alicia, you have a wonderful hub. Actually I had never knew about Horseradish Root before. I believe this could be a delicious sauce. Thank you very much for your introducing this to us. Well done and you got my vote. Up..Up...and UP!


    • AliciaC profile imageAUTHOR

      Linda Crampton 

      8 years ago from British Columbia, Canada

      Hi, Susan. I've never heard of horseradish cheese before. That does sound delicious! Thanks for the comment.

    • AliciaC profile imageAUTHOR

      Linda Crampton 

      8 years ago from British Columbia, Canada

      Thank you, Movie Master. I like horseradish too, but I don't like it too hot. Horseradish is supposed to be very easy to grow in a garden or in containers, although I've never tried this.

    • Movie Master profile image

      Movie Master 

      8 years ago from United Kingdom

      I love horseradish, the hotter the better, I think I will plant some in the garden, don't know why I didn't think of that before!

      Many thanks for sharing and voting up.

    • Just Ask Susan profile image

      Susan Zutautas 

      8 years ago from Ontario, Canada

      I love horseradish although I have never thought of making my own. A few years ago I came across horseradish cheese. It is delicious. Enjoyed your hub and I will try and make my own horseradish soon.


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