What Is Natto? A Complete Guide to Japanese Fermented Soybeans

Jul 25, 2026 ShimaYasunobu NATTO
What Is Natto? A Complete Guide to Japanese Fermented Soybeans
All 日本情報 0

What Is Natto? A Complete Guide to Japanese Fermented Soybeans

Discover the history, health benefits, unique flavor, and traditional ways to enjoy Japan’s famous fermented soybean food.

What Is Natto?

Natto is a traditional Japanese food made from fermented soybeans.

It is known for its unique characteristics:

  • Sticky texture

  • Strong aroma

  • Rich umami flavor

  • High nutritional value

Natto is usually eaten with steamed rice and is a popular breakfast food in Japan.

Although natto has a strong reputation among people trying Japanese food for the first time, many people around the world have discovered and enjoy its unique taste and health benefits.

Today, natto is becoming increasingly popular among people interested in:

  • Fermented foods

  • Gut-friendly foods

  • Plant-based nutrition

  • Traditional Japanese cuisine

The History of Natto

Natto has been enjoyed in Japan for more than 1,000 years.

The exact origin of natto is uncertain, but fermented soybeans have been part of Japanese food culture for centuries.

One popular story suggests that fermented soybeans were discovered when cooked soybeans stored with straw naturally fermented.

Traditional Japanese straw contains a beneficial bacteria called Bacillus subtilis natto, which plays an important role in natto fermentation.

Over generations, natto became a common household food, especially in eastern Japan.

Today, natto remains a traditional Japanese breakfast favorite.

How Is Natto Made?

Natto is created through a natural fermentation process.

1. Cooking Soybeans

High-quality soybeans are carefully selected and steamed until soft.

2. Adding Natto Bacteria

The cooked soybeans are mixed with Bacillus subtilis natto, a special fermentation bacteria.

3. Fermentation

The soybeans are kept warm for approximately 18–24 hours.

During fermentation:

  • Sticky texture develops

  • Strong aroma appears

  • Nutritional compounds change

  • Umami flavor increases

4. Aging

After fermentation, natto is usually refrigerated for several days to allow the flavor to develop.

What Does Natto Taste Like?

Natto has a very unique flavor and texture.

The taste is often described as:

  • Nutty

  • Savory

  • Earthy

  • Slightly bitter

  • Rich in umami

The most famous feature is its sticky texture, which creates long strings when mixed.

Many Japanese people enjoy the texture as part of the natto experience.

Why Is Natto Sticky?

The famous sticky texture comes from polyglutamic acid, a natural substance created during fermentation.

When natto is stirred:

  • The texture becomes creamier

  • More strings appear

  • The flavor becomes smoother

Many Japanese people recommend mixing natto well before eating.

How Do Japanese People Eat Natto?

Natto is traditionally eaten in simple ways.

1. Natto Over Rice

The most common way to eat natto.

Typical preparation:

  1. Stir natto thoroughly.

  2. Add the included sauce and mustard.

  3. Place it over warm Japanese rice.

  4. Mix and enjoy.

2. Natto with Green Onion

Adding chopped green onions creates a fresh flavor combination.

3. Natto with Egg

Raw or cooked egg is sometimes added to create a richer texture.

4. Natto Sushi Rolls

Some sushi restaurants serve natto rolls, known as:

Natto maki

They are popular among people who enjoy traditional sushi flavors.

5. Natto Toast

A modern style enjoyed by some people:

  • Toast

  • Natto

  • Cheese

  • Seasonings

Health Benefits of Natto

Natto is considered one of Japan’s most nutritious traditional foods.

Rich in Plant-Based Protein

Because natto is made from soybeans, it provides plant-based protein.

It is popular among:

  • Vegetarians

  • Plant-based eaters

  • Health-conscious consumers

Contains Probiotics

As a fermented food, natto contains beneficial microorganisms created during fermentation.

Many people include fermented foods in their diet to support overall digestive wellness.

Source of Vitamin K2

Natto is especially known for containing vitamin K2, a nutrient naturally produced during fermentation.

Contains Nattokinase

Natto contains an enzyme called nattokinase, which has attracted scientific interest.

However, natto is a food product and is not intended to diagnose, treat, or prevent any disease.

Natto Nutrition Facts

Natto contains various nutrients, including:

  • Protein

  • Fiber

  • Vitamin K

  • Iron

  • Magnesium

  • Fermentation compounds

Because nutritional values vary by product, always check the package label.

Natto vs Regular Soybeans: What Is the Difference?

Natto Soybeans
Preparation Fermented Not fermented
Texture Sticky Firm
Flavor Strong umami Mild bean flavor
Digestibility Changed through fermentation Natural soybean texture
Use Breakfast, rice topping Tofu, soy milk, cooking

Fermentation gives natto its unique taste and characteristics.

Is Natto Vegan?

Yes.

Traditional natto is naturally vegan.

The basic ingredients are:

  • Soybeans

  • Natto bacteria

However, some prepared natto products or dishes may include additional ingredients.

Always check the package if you follow a strict vegan diet.

How to Store Natto

Natto should be stored properly.

Recommended storage:

✓ Keep refrigerated
✓ Consume before the expiration date
✓ Freeze if storing for a longer period
✓ Thaw naturally before eating

Natto is commonly sold in small individual packages for convenience.

Frequently Asked Questions About Natto

Why does natto smell?

The strong aroma comes from the natural fermentation process.

Many Japanese people consider the smell part of natto’s unique character.

How do you reduce natto’s smell?

You can combine natto with:

  • Green onion

  • Mustard

  • Soy sauce

  • Egg

  • Kimchi

These ingredients can create a more balanced flavor.

Is natto healthy?

Natto is a nutritious fermented food containing protein, fiber, vitamin K, and fermentation-derived compounds.

It can be enjoyed as part of a balanced diet.

Do Japanese people eat natto every day?

Many Japanese people eat natto regularly, especially as a breakfast dish.

Where can I buy natto?

Natto is available at:

  • Japanese grocery stores

  • Asian supermarkets

  • Online Japanese food stores

Frozen natto is commonly available outside Japan.

Why Is Natto Becoming Popular Worldwide?

Natto is gaining international attention because of growing interest in:

✓ Fermented foods
✓ Gut health
✓ Plant-based nutrition
✓ Traditional Japanese cuisine
✓ Natural ingredients

Although natto has a unique taste and texture, many people discover that they enjoy it after trying it several times.

Conclusion: Discover the Unique World of Natto

Natto is one of Japan’s most traditional and unique foods.

With its fascinating fermentation process, impressive nutritional profile, and deep connection to Japanese breakfast culture, natto represents the creativity and tradition of Japanese cuisine.

It may be different from foods you have tried before, but discovering natto is a wonderful way to experience authentic Japanese food culture.

Try natto and explore one of Japan’s most unique fermented foods.

https://konnichiwa.ca/search?q=NATTO&options%5Bprefix%5D=last&type=product%2Carticle%2Cpage

Share:

Leave a comment

What Is Tonkatsu? A Complete Guide to Japanese Breaded Pork Cutlet
What Is Tonkatsu? A Complete Guide to Japanese Breaded Pork Cutlet
What Is Tonkatsu? A Complete Guide to Japanese Breaded Pork Cutlet Discover tonkatsu, Japan’s famous breaded pork cutlet known for its crispy panko coating, tender meat, and rich savory sauce. What Is Tonkatsu? Tonkatsu (とんかつ) is a popular Japanese dish made with a breaded and deep-fried pork cutlet served with shredded cabbage, rice, and a special tonkatsu sauce. The name comes from: Ton (豚) = pork Katsu (カツ) = cutlet Tonkatsu is one of Japan’s most beloved comfort foods and is enjoyed in homes, restaurants, and casual dining shops throughout Japan. It is famous for its: Crispy golden coating Juicy pork interior Rich savory sauce Perfect balance of textures The History of Tonkatsu Tonkatsu was created in Japan during the late 19th century. It was inspired by European-style breaded cutlets, especially dishes such as French cuisine’s côtelette. Japanese chefs adapted the dish by using: Japanese-style breadcrumbs (panko) Deep frying techniques Local seasonings Over time, tonkatsu became a uniquely Japanese dish. What Makes Japanese Tonkatsu Special? The secret of authentic tonkatsu comes from the combination of: High-quality pork Crispy panko breadcrumbs Careful frying technique Traditional tonkatsu sauce Each element creates the classic Japanese flavor experience. Main Ingredients of Tonkatsu 1. Pork Cutlet The most common cuts are: Pork Loin (Rosu Tonkatsu) Characteristics: Rich flavor Juicy texture Slightly higher fat content Pork Fillet (Hire Tonkatsu) Characteristics: Leaner meat Tender texture Mild flavor 2. Panko Breadcrumbs One of the most important ingredients. Panko (パン粉) is Japanese-style breadcrumbs with a light and airy texture. Compared with regular breadcrumbs, panko creates: Extra crispiness A lighter coating A less oily texture Panko has become popular worldwide in: Japanese cooking Western cuisine Fusion recipes 3. Tonkatsu Sauce Tonkatsu sauce is a thick Japanese sauce with a sweet and savory flavor. It usually contains: Fruits Vegetables Vinegar Spices The flavor is similar to Worcestershire sauce but thicker and richer. How Is Tonkatsu Made? Traditional tonkatsu preparation follows several steps. Step 1: Preparing the Pork The pork is: Cut into portions Tenderized Seasoned with salt and pepper Step 2: Coating the Pork The pork is coated with: Flour Egg Panko breadcrumbs This creates the signature crispy crust. Step 3: Deep Frying The coated pork is carefully fried until: Golden brown outside Juicy inside Step 4: Serving Tonkatsu is usually served with: Shredded cabbage Rice Miso soup Pickles Tonkatsu sauce Popular Types of Tonkatsu Classic Tonkatsu The traditional version with pork, panko, and sauce. Chicken Katsu A popular variation using chicken instead of pork. It is enjoyed worldwide. Katsu Sando (Katsu Sandwich) A Japanese sandwich made with: Tonkatsu Bread Tonkatsu sauce It is a popular convenience store and café food in Japan. Katsudon A rice bowl topped with: Tonkatsu Egg Onion Sweet savory sauce It is one of Japan’s most popular rice bowl dishes. Why Is Cabbage Served with Tonkatsu? Shredded cabbage is a traditional side dish for tonkatsu. It provides: Freshness Crunchy texture Balance with the fried cutlet The combination of crispy tonkatsu and fresh cabbage creates a balanced meal. Tonkatsu Sauce and Japanese Flavor Tonkatsu sauce represents an important part of Japanese cooking: Creating balance between sweet, salty, sour, and savory flavors. It pairs well with: Pork Chicken Vegetables Fried foods Tonkatsu vs Schnitzel Tonkatsu Schnitzel Country Japan Europe Coating Panko breadcrumbs Fine breadcrumbs Meat Mainly pork Various meats Sauce Tonkatsu sauce Often lemon or gravy Serving style Cabbage, rice, miso soup Potatoes or salad Is Tonkatsu Healthy? Tonkatsu is a fried dish, but it can be enjoyed as part of a balanced diet. A traditional meal often includes: Protein from pork Vegetables from cabbage Rice for energy Preparation methods and portion sizes affect nutritional value. Is Tonkatsu Gluten-Free? Traditional tonkatsu is not gluten-free because it uses: Wheat flour Regular panko breadcrumbs Some sauces containing wheat Gluten-free versions can be made using: Gluten-free breadcrumbs Alternative flour Gluten-free soy sauce Is Tonkatsu Vegan? Traditional tonkatsu contains pork. However, vegan versions can be made using: Tofu Mushrooms Plant-based ingredients How to Enjoy Tonkatsu at Home You can make Japanese-style tonkatsu using: Pork cutlets Panko breadcrumbs Eggs Flour Tonkatsu sauce Popular homemade variations include: Chicken katsu Vegetable katsu Katsu sandwiches Frequently Asked Questions About Tonkatsu Is tonkatsu Japanese? Yes. Tonkatsu is a Japanese dish inspired by Western-style cutlets and adapted into a unique Japanese food. What does tonkatsu taste like? It has a crispy coating, juicy meat, and a sweet-savory sauce flavor. What is panko? Panko is Japanese-style breadcrumbs that create a light and crispy texture. What sauce is used for tonkatsu? Traditional tonkatsu uses a special thick sweet-savory sauce. Where can I buy tonkatsu ingredients? Japanese cooking ingredients are available at: Japanese grocery stores Asian supermarkets Online Japanese food stores Why Is Tonkatsu Important in Japanese Culture? Tonkatsu represents the Japanese ability to adapt international influences and create something uniquely Japanese. From family restaurants to specialty shops, tonkatsu remains a favorite comfort food across Japan. It combines: Simple ingredients Skilled preparation Balanced flavors Conclusion: Discover Japanese Tonkatsu Tonkatsu is more than a fried pork cutlet. It is a symbol of Japanese comfort food culture, combining crispy panko, tender pork, fresh cabbage, and flavorful sauce. Whether enjoyed at a restaurant in Japan or prepared at home, tonkatsu offers a delicious introduction to Japanese cuisine. Discover Japanese tonkatsu and experience one of Japan’s most popular comfort foods. https://konnichiwa.ca/search?q=tonkatsu&options%5Bprefix%5D=last&type=product%2Carticle%2Cpage
Learn More
What Is Yakitori? A Complete Guide to Japanese Grilled Chicken Skewers
What Is Yakitori? A Complete Guide to Japanese Grilled Chicken Skewers
What Is Yakitori? A Complete Guide to Japanese Grilled Chicken Skewers Discover yakitori, a traditional Japanese grilled chicken dish known for its smoky flavor, delicious sauces, and connection to Japanese izakaya culture. What Is Yakitori? Yakitori (焼き鳥) is a popular Japanese dish made by grilling small pieces of chicken on bamboo skewers over charcoal. The name comes from: Yaki (焼き) = grilled or cooked Tori (鳥) = bird or chicken Yakitori is one of Japan’s most beloved casual foods and is enjoyed by people of all ages. It is commonly found at: Izakaya restaurants Food festivals Street stalls Specialty yakitori shops The History of Yakitori Yakitori has a long history in Japan. Although grilled chicken dishes existed earlier, modern yakitori became especially popular during the 20th century. As chicken became more widely available, yakitori developed into an affordable and delicious food enjoyed by workers and families. Today, yakitori represents Japanese casual dining culture. Why Is Yakitori Popular in Japan? Yakitori is loved because it is: Affordable Flavorful Easy to share Perfect with drinks It is especially popular at: Izakaya (Japanese pubs) where people enjoy small dishes together with: Beer Sake Shochu How Is Yakitori Made? Traditional yakitori follows a simple cooking process. Step 1: Preparing the Chicken Chicken is cut into small pieces and placed on bamboo skewers. Different parts of the chicken can be used. Step 2: Seasoning Yakitori is usually prepared in two main styles: Tare A sweet-savory sauce made from ingredients such as: Soy sauce Mirin Sugar Sake Tare creates a rich glaze. Shio Seasoned simply with salt. This style highlights the natural flavor of the chicken. Step 3: Grilling Over Charcoal Yakitori is traditionally grilled over charcoal. Charcoal creates: Smoky aroma Crispy outside Juicy inside The grilling technique is an important part of yakitori craftsmanship. Popular Types of Yakitori Japan uses many different chicken cuts for yakitori. Momo (Chicken Thigh) One of the most popular choices. Characteristics: Juicy Tender Flavorful Negima Chicken thigh with green onion. The combination creates a balance of: Meat flavor Fresh aroma Tsukune (Chicken Meatballs) Ground chicken shaped into small balls. Often served with: Tare sauce Egg yolk dipping sauce Tebasaki (Chicken Wings) Known for: Crispy skin Rich flavor Bonjiri (Chicken Tail) A specialty cut appreciated by yakitori fans. Reba (Chicken Liver) A traditional yakitori ingredient with a rich texture. Yakitori Sauce (Tare) One of the most important elements of yakitori is tare sauce. Traditional tare often includes: Soy sauce Mirin Sake Sugar The sauce creates the classic Japanese sweet and savory flavor. Related Japanese ingredients: Soy sauce Mirin Sake Yakitori and Japanese Izakaya Culture Yakitori is closely connected with izakaya culture. Izakaya are casual Japanese restaurants where people gather after work or with friends. Typical combinations include: Yakitori Beer Sake Small side dishes Yakitori represents the Japanese style of enjoying food together. Yakitori vs Teriyaki Yakitori Teriyaki Cooking style Skewered grilled chicken Usually grilled or cooked meat Sauce Tare sauce Teriyaki sauce Serving style Small skewers Larger portions Culture Izakaya food Home and restaurant cooking Is Yakitori Healthy? Yakitori can vary depending on: Chicken cut Sauce amount Preparation method It can provide: Protein Simple ingredients Balanced flavors Grilled chicken options are often lighter than fried foods. Is Yakitori Gluten-Free? Traditional yakitori itself may be gluten-free if prepared with salt seasoning. However, tare sauce often contains soy sauce, which may contain wheat. Gluten-free versions require gluten-free soy sauce. Is Yakitori Vegan? Traditional yakitori contains chicken. However, modern Japanese restaurants may offer plant-based skewers using: Mushrooms Vegetables Tofu How to Enjoy Yakitori at Home Yakitori can be prepared using: Grill Oven Pan BBQ equipment Popular ingredients include: Chicken Green onions Mushrooms Vegetables A simple tare sauce can recreate the Japanese flavor at home. Frequently Asked Questions About Yakitori Is yakitori only chicken? Traditional yakitori focuses on chicken, but some restaurants also offer vegetables and other grilled foods. What is the difference between yakitori and yakiniku? Yakitori means grilled chicken skewers, while yakiniku refers to Japanese-style grilled meat. What drink goes well with yakitori? Popular pairings include: Beer Sake Japanese highballs Where can I buy yakitori ingredients? Ingredients are available at: Japanese grocery stores Asian supermarkets Online Japanese food stores Why Is Yakitori Important in Japanese Culture? Yakitori represents the Japanese appreciation for: Simple ingredients Skilled cooking techniques Sharing food with others A small skewer of grilled chicken reflects the heart of Japanese casual dining. Conclusion: Discover Japanese Yakitori Yakitori is much more than grilled chicken. It is a symbol of Japanese food culture, combining simple ingredients, traditional grilling techniques, and unforgettable flavors. From Tokyo izakaya to restaurants around the world, yakitori continues to introduce people to the warmth and taste of Japan. Discover Japanese yakitori and experience one of Japan’s most popular grilled foods. https://konnichiwa.ca/search?q=%E3%82%84%E3%81%8D%E3%81%A8%E3%82%8A&options%5Bprefix%5D=last&type=product%2Carticle%2Cpage
Learn More
What Is Shio Koji? A Complete Guide to Japanese Fermented Seasoning
What Is Shio Koji? A Complete Guide to Japanese Fermented Seasoning
What Is Shio Koji? A Complete Guide to Japanese Fermented Seasoning Discover shio koji, a traditional Japanese fermented seasoning made from rice koji, salt, and water that adds natural sweetness, umami, and depth to everyday cooking. What Is Shio Koji? Shio koji (塩麹) is a traditional Japanese fermented seasoning made from: Rice koji Salt Water The word means: Shio (塩) = salt Koji (麹) = fermentation starter Shio koji has been used in Japan for centuries as a natural seasoning and is now becoming popular worldwide among chefs and home cooks. It is known for its ability to add: Umami flavor Natural sweetness Rich aroma Tender texture Why Is Shio Koji Important in Japanese Cuisine? Shio koji represents one of the most important ideas in Japanese cooking: Transforming simple ingredients through fermentation. Instead of simply adding salt, shio koji adds multiple layers of flavor through the enzymes created by koji fermentation. It helps create dishes that are: More flavorful More balanced More aromatic The History of Shio Koji Although shio koji has become popular in recent years, its roots go back hundreds of years. Koji-based fermentation has been used in Japan to make: Miso Soy sauce Sake Amazake Historically, salted koji mixtures were used as a way to preserve and season food. Modern Japanese cooking rediscovered shio koji as a versatile everyday seasoning. How Is Shio Koji Made? Traditional shio koji production is simple but requires time. Step 1: Preparing Rice Koji Steamed rice is cultivated with Aspergillus oryzae, a traditional Japanese fermentation mold. This creates rice koji. Step 2: Adding Salt and Water Rice koji is mixed with: Salt Water The mixture begins fermentation. Step 3: Fermentation During fermentation, koji enzymes break down: Proteins into amino acids Starches into sugars This creates shio koji’s unique flavor. The fermentation period usually takes about one to two weeks. What Does Shio Koji Taste Like? Shio koji has a complex flavor. It is: Salty Slightly sweet Mildly fermented Rich in umami Smooth Compared with regular salt, shio koji provides a deeper and more rounded taste. How Is Shio Koji Used in Japanese Cooking? Shio koji is extremely versatile. 1. Meat Marinade One of the most popular uses. Shio koji can be used with: Chicken Pork Beef It helps add flavor and create a tender texture. 2. Fish Seasoning Shio koji pairs well with: Salmon White fish Seafood It enhances the natural taste of seafood. 3. Vegetable Seasoning It can be used for: Pickled vegetables Roasted vegetables Salads 4. Rice and Soup Dishes Shio koji can add depth to: Rice dishes Soups Sauces Shio Koji vs Salt Shio Koji Regular Salt Main ingredient Rice koji + salt Salt only Flavor Umami-rich Salty Fermentation Yes No Cooking purpose Seasoning + flavor enhancement Basic seasoning Shio Koji and Umami One of the biggest reasons shio koji is popular is its ability to create umami. During fermentation, koji enzymes produce amino acids such as glutamic acid. These compounds contribute to the savory taste found in many Japanese foods. Shio Koji and Japanese Fermentation Culture Shio koji belongs to Japan’s long fermentation tradition. Other important koji-based foods include: Miso Soy sauce Sake Mirin Amazake Koji is often considered the foundation of Japanese fermentation. Is Shio Koji Healthy? Shio koji is valued as a traditional fermented food. It contains: Fermentation-derived compounds Enzymes created during fermentation Natural flavors Like other seasonings, it should be enjoyed as part of a balanced diet. Is Shio Koji Vegan? Yes. Traditional shio koji is naturally vegan. It contains: Rice koji Salt Water Is Shio Koji Gluten-Free? Traditional rice-based shio koji is gluten-free. However, some commercial products may contain additional ingredients. Always check the label if you require gluten-free foods. How to Use Shio Koji at Home Easy ways to start: As a Marinade Coat meat or fish with shio koji and allow it to rest before cooking. As a Salt Replacement Use a small amount instead of regular salt. As a Flavor Booster Add it to: Soups Stir-fries Sauces Frequently Asked Questions About Shio Koji What is shio koji made from? It is made from rice koji, salt, and water. Is shio koji salty? Yes, but it has a more complex flavor than ordinary salt. How long does shio koji last? Store-bought shio koji should be stored according to package instructions, usually refrigerated after opening. Can I make shio koji at home? Yes. Many people make homemade shio koji using rice koji, salt, and water. Where can I buy shio koji? Shio koji is available at: Japanese grocery stores Asian supermarkets Online Japanese food stores Why Is Shio Koji Important in Japanese Culture? Shio koji shows how Japanese cuisine creates extraordinary flavors from simple ingredients. Rice, salt, and water become a powerful seasoning through the natural process of fermentation. It represents the Japanese appreciation for: Patience Balance Natural flavors Traditional craftsmanship Conclusion: Discover Japanese Shio Koji Shio koji is much more than a seasoning. It is a traditional Japanese fermented ingredient that brings umami, sweetness, and depth to everyday cooking. From professional kitchens to home cooking around the world, shio koji is introducing more people to the unique power of Japanese fermentation. Discover shio koji and experience one of Japan’s most versatile traditional seasonings. https://konnichiwa.ca/search?q=%E5%A1%A9%E3%81%93%E3%81%86%E3%81%98&options%5Bprefix%5D=last&type=product%2Carticle%2Cpage
Learn More
All 日本情報