Challenge to make “NATTO”, which is indispensable for Japanese people(in The UK)

Natto is said to be a Japanese food that foreigners are not good at. However, there are people who are not good at this Natto even in Japan.
On the contrary, there are many Japanese people who love it so much that it is useless without it. My family is so.
However, it is expensive and hard to get in the UK. I tried to make Natto using soybeans.

How to make Natto (It takes about 3~5 days)


200 g Dried soybeans
1 tsp.  Natto
Large container
Toothpicks (or bamboo skewers and forks)
Plastic wrap


Step 1


Wash the soybeans with water. Soak in 2-3 times more water overnight to a full day.

Step 2


Add 2 to 3 times as much water as soybeans and boil for about 3 hours.
Boil the soybeans until they are tender.

Step 3

Pour boiling water over all containers, spoons, forks, etc. to prevent the invasion of bacteria.

Step 4


From here, we will act quickly so that the soybeans do not cool down.
Pour the soybeans into a container that has been sterilized with boiling water.
Please note that if soybeans are stacked in three or more layers, the natto bacteria will not spread to the inside.

Step 5


Add about 2 tablespoons of boiling water to the original natto, mix well, add to the soybeans, and mix evenly with a spoon.

Step 6

Flatten the whole.

Step 7


Cover it with plastic wrap and make a hole with a toothpick or fork.
Oxygen is indispensable for the increase of Natto bacteria.

Step 8


Wrap it in a towel.
Leave it in a place to keep it at about 40 degrees for 20 hours.
I put my house on the radiator.
You can also devise a hot carpet or styrofoam box. (Yogurt maker, etc.)

Step 9


About 20 hours later, it looks like this.

Step 10


After that, take a rest in the refrigerator for about 1 to 2 days to make delicious natto. (You can eat it right away, but if you take a rest, the taste will increase dramatically.)

How to eat Natto


If you eat natto as it is, it will only have an unpleasant odor.
Generally, it is eaten with soy sauce.
I sprinkle Bonito soup base.
I think the main cause of people who are not good at Natto is “smell”.
Or do they hate stickiness?
At that time, it is recommended to add grated radish.

Alternatively, you can add a little sugar or mustard to make it delicious.


Efficacy of Natto


Natto has a lot of nutrition and is very suitable for building a healthy body.
I will explain the effects of Natto.

Intestinal regulation (natto bacteria)
Immunity improvement (natto bacteria)
Prevention of blood clots (nattokinase)
Prevention of infectious diseases and allergies (natto bacteria)
Detoxification / antibacterial action (natto bacteria)
Prevention of fractures (vitamin K2)
Improvement of menopausal symptoms (soy isoflavone)
Anti-aging effect (polyamine)
Suppression of blood sugar level rise (polyglutamic acid)


Everyone in the family is very happy to eat a lot of Natto. Also, I can enjoy making with my children.
But be careful. If you do not rinse it with water immediately after eating, it will be filled with the smell of Natto throughout the house.
As a Natto lover, I feel a little unpleasant.

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Author of this article

This blog was created with the concept of having many people enjoy Japanese cuisine overseas. Here are some simple Japanese recipes. In addition to that, I would like to tell everyone that Japanese ingredients are available overseas. And I want to spread the fun of Japanese culture to the world.


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