The Nitty-gritty Of Why Wasabi Is Always So Hot – According To Science! (2024)

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Chances are if you enjoy sushi and generally, Asian-fusion meals, you have come across the green wasabi. A taste of this spice gives an explosive response; your eyes start to water, and your nose goes berserk! This is unlike anything you'll ever get from eating chili, so we can't help but wonder what makes the wasabi, which is also plant-based like the chili sauce, so uniquely hot.

By Cookist

The Nitty-gritty Of Why Wasabi Is Always So Hot – According To Science! (1)

The wasabi spice gets its name from the wasabi plant, which is native to Japan. The plant is also called the Japanese horseradish, and it belongs to a cabbage-type plant family, Brassicaceae.

Genuine wasabi is rarely found outside of Japan, so most of what we call the wasabi spice is a mix of horseradish, mustard, and green food coloring.

However, the vital bit that is common to both horseradish and wasabi is a chemical called allyl isothiocyanate. This is what makes the wasabi super-hot so that your receptors go into overdrive when you taste it.

Receptors sit on the cell surface and act as messengers of sorts that help the cell react to various happenings in its environment.

The wasabi chemical is smaller in size when compared to the capsaicin in chillis. So, while capsaicin would cause hotness you feel on your tongue, the smaller wasabi chemical vaporizes and goes up into your nose where there are many wasabi receptors.

The Nitty-gritty Of Why Wasabi Is Always So Hot – According To Science! (2)

This is when your body starts to experience the different reactions common to eating wasabi! A good example is the introduction of allyl isothiocyanate, the wasabi chemical into the body system.

What happens is that the wasabi receptor, "TRPA1," which is related to the receptor for spiciness in chili peppers, the TRPV1, is stimulated by allyl isothiocyanate.

This results in a series of reactions like parts of your body starting to itch, you may begin to cough, choke, or even cry!

If you were wondering, The TRPA1 receptors are not limited to reacting to just wasabi. They typically respond to things that may irritate our senses e.g., onions, tear gas, and smoke.

This is why the TRPA1 receptors remain a subject of great interest for scientists as they hope that understanding the way it works will help in the search for effective pain relief for people with chronic pain.

The Nitty-gritty Of Why Wasabi Is Always So Hot – According To Science! (2024)

FAQs

The Nitty-gritty Of Why Wasabi Is Always So Hot – According To Science!? ›

For example, wasabi contains allyl isothiocyanate. This compound vaporizes and goes directly up the nose, causing an instant uncomfortable sensation that's very similar to tear gas. On the other hand, more traditional spice contains capsaicin, including most peppers.

Why is the wasabi so hot? ›

Wasabi is spicy due to an organic chemical compound found in the plant called allyl isothiocyanate. This same compound is also found in horseradish and mustard from the Brassicaceae plant family. You can sometimes react to this compound with streaming eyes and the feeling that the spice is 'going up your nose'.

What is the science behind wasabi? ›

Chief among these molecules are isothiocyanates. Isothiocyanates trigger special sensors in our cells, which some scientists have dubbed the 'wasabi receptor', or less colourfully, TRPA1. These sensors are our body's 'fire alarm', and they create feelings of pain and inflammation.

What chemical makes wasabi spicy? ›

The spicy sensation of wasabi is derived from a chemical compound called allyl isothiocyanate, which is also present in mustard and horseradish.

What is the chemical reaction in wasabi? ›

The chemical in wasabi that provides its initial pungency is the volatile compound allyl isothiocyanate, which is produced by hydrolysis of allyl glucosinolate, a natural thioglucoside (conjugates of the sugar glucose and sulfur-containing organic compounds); the hydrolysis reaction is catalyzed by myrosinase and ...

Is wasabi hotter than Pepper? ›

The pepper effects your actual taste buds, whereas the wasabi effects your nasal passages and receptors. Different “heat” signatures, if you will. Yes, in that each person has a different experience with them and wasabi can absolutely feel hotter than ghost peppers.

Why does wasabi burn so much? ›

As we eat wasabi or horseradish, allyl isothiocyanate vapors travel through the back of the mouth and up into the nasal cavity. This triggers a nerve response in the nose and sinuses, explains Dr. Dawn Chapman, project leader for sensory research at the National Food Laboratory, causing the familiar nose-tingling burn.

What does wasabi do for the brain? ›

According to a study, wasabi boasts memory-boosting powers. The study published in the journal Nutrients investigated the positive impact of wasabi (a plant that is often made into a paste and served alongside sushi as a spicy condiment), on cognitive functions like memory.

Why is wasabi so addicting? ›

Wasabi and Horseradish contain a number of volatile chemical compounds, including allyl isothiocyanate, which is also found in mustard. Inhalation of these compounds function similarly to smelling salts, and triggers an inhalation reflex(making you breathe faster) by irritating the mucus membrane.

Is wasabi healthy for you? ›

Yes, wasabi is healthy! This powerful green root is packed with nutrients, including vitamin C, potassium, and calcium. It also contains antioxidants and compounds that can help protect your body against inflammation and chronic diseases.

What color is real wasabi? ›

Unlike the spicy neon concoction familiar to many fans of Japanese cuisine – which is in fact made from horseradish – real wasabi is pale-green and offers a complex, mildly piquant flavour. But even in Japan, it is not common fare.

Is wasabi hotter than horseradish? ›

Firstly, real wasabi isn't as hot as horseradish. Its flavour is fresher, sweeter and more fragrant. Its colour is generally a more natural green, which makes sense as it's not added artificially. Moreover, the shade of green varies greatly depending on the specific cultivar.

What are the bad effects of wasabi? ›

Large amounts of wasabi might increase the risk of bleeding and bruising in people with bleeding disorders. Surgery: Wasabi might slow blood clotting. Large amounts of wasabi might cause too much bleeding during surgery. Stop taking wasabi as a medicine at least 2 weeks before surgery.

What is the antidote for wasabi? ›

I immediately asked for vinegar, remembering that it neutralizes hot, spicy food. I got immediate relief from gargling the cider vinegar. A: Wasabi (Japanese horseradish) is made from the stems of a plant that grows in Japan.

What is the red stuff next to wasabi? ›

The pink stuff often served alongside sushi is called "pickled ginger" or "gari" in Japanese. Pickled ginger is a palate cleanser that is traditionally eaten between different types of sushi or sashimi to refresh the taste buds and cleanse the palate before moving on to a new flavor.

Is wasabi spicy good for you? ›

While wasabi's spice might get your heart beating, some components in wasabi actually do promote heart health. Adding a bit of wasabi to your diet can help reduce cholesterol and improve blood circulation, which ultimately keeps your blood pressure at a healthy level.

Is real wasabi spicier than fake wasabi? ›

Real wasabi is not spicy. It's more like the aroma of spiciness but without the pungent punch of the mustard seed flour in the fake stuff. Fake wasabi has a very strong taste that overrules the delicate fish taste. It delivers a strong blast of spiciness that comes from the mustard seed flour.

How do you eat wasabi without it being spicy? ›

Wasabi is often served with soy sauce. You can mix the wasabi into the soy sauce to dilute the heat. You can also eat wasabi with pickled ginger, which can help to cleanse the palate and reduce the heat.

Why is wasabi temporarily spicy? ›

However, the vital bit that is common to both horseradish and wasabi is a chemical called allyl isothiocyanate. This is what makes the wasabi super-hot so that your receptors go into overdrive when you taste it.

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