Ferment Natto at home

Name: Ferment Natto at home
Yield: 2 adults + 2kids for a week
Cuisine: British
Ingredients: 460 g soybeans; 20 g natto; Water; Fermentation chamber (you need to maintain 40C for 36 hours); Steamer (any); 5 Plastic trays; Toothpick

Takoyakinori @search

Bristol

Natto is fermented soybeans common in Japan. Natto has very unique powerful smell, strong flavour, and sticky, slimy texture. Natto is expensive outside of Japan but you can make them at home cheap.

Here is how to make your own fermentation chamber.
https://cookpad.wasmer.app/uk/tips/188-the-cheap-diy-fermentation-chamber/

Natto is fermented soybeans common in Japan. Natto has very unique powerful smell, strong flavour, and sticky, slimy texture. Natto is expensive outside of Japan but you can make them at home cheap.

Here is how to make your own fermentation chamber.
https://cookpad.wasmer.app/uk/tips/188-the-cheap-diy-fermentation-chamber/

Takoyakinori @search

Bristol

Natto is fermented soybeans common in Japan. Natto has very unique powerful smell, strong flavour, and sticky, slimy texture. Natto is expensive outside of Japan but you can make them at home cheap.

Here is how to make your own fermentation chamber.
https://cookpad.wasmer.app/uk/tips/188-the-cheap-diy-fermentation-chamber/

Natto is fermented soybeans common in Japan. Natto has very unique powerful smell, strong flavour, and sticky, slimy texture. Natto is expensive outside of Japan but you can make them at home cheap.

Here is how to make your own fermentation chamber.
https://cookpad.wasmer.app/uk/tips/188-the-cheap-diy-fermentation-chamber/

Saved

Ingredients

3 days

2 adults + 2kids for a week

460 gsoybeans
20 gnatto
Water
Equipment
Fermentation chamber (you need to maintain 40C for 36 hours)
Steamer (any)
5Plastic trays
Toothpick

Saved

Steps

3 days

1

Wash soybeans lightly. Soak the soybeans for 24 hours till the size of the beans doubled.
2

Steam the soybeans till they become soft enough. If I use a bamboo steamer, it took 6 hours. If I used a pressure cooker, it took just an hour.
3

30 min before the steaming process over, sanitise spoons, plastic trays and toothpick with boiled water (I used Milton before sanitising with boiled water). This is very important so that any unwelcome bacteria won't grow during the fermentation process.
4

Mix the lead natto with hot water (about 50c degree) and mash it as much as possible. In other words, "hot natto infused water"
5

Soybeans steamed well, then quickly separate them on to trays. Don’t lay thick, they should be less than three beans height.
6

Mix the "hot natto infused water"(4) with soybeans in each tray.
7

Seal the trays with cooking wrap and make small holes so that beans can breath. Cooking wraps should touch beans in the end.
8

Place in a fermentation chamber for 36 hours. If you don’t have a chamber, you can take alternative methods as long as you can keep them under 40C for 36 hours.

A cheap DIY fermentation chamber
9

I store them in a fridge. My family eat them once a day almost every day.
10

Sticky! Neba Neba!!

Tips

A cheap DIY fermentation chamber

For several fermentation methods, you better have a fermentation chamber which keeps the specific temperature for a specific time. You can DIY a fermentation chamber easily with three items and connect them as shown in the picture. 1)£0: styrofoam box from fishmonger 2) £30: Themostat https://www.amazon.co.uk/dp/B018K82UQU/ 3) £15: Heater https://www.amazon.co.uk/dp/B07GJF8KLV