Domingo necklace

Instructions for using the Domingo necklace

Domingo necklace

Yes, you can ferment your food with the heat of your body! Domingo Club made a necklace for this. Wear it for 2 days and ferment your own plant-based protein aka tempeh. Get it on our shop

About Tempeh

Tempeh is a fermented product from Indonesia made from soybeans and fungi. During the fermentation, the fungus feeds on the soybeans and grows in the space around them, binding them together. This processs breaks down the molecules and this pre-digestion allows us to absorb many more nutrients from the soybeans. That makes tempeh as rich in protein and iron as meat. It is also higher in fibre and calcium while being lower in saturated fat and salt. The taste of tempeh evokes aromas of mushrooms, nuts and yeast, and its texture is firm, chunky and “meaty”. Extremely delicious!

About the Domingo necklace

The Domingo Necklace is a poetic invitation to anyone to start fermenting tempeh without any other device than your body.

How to make tempeh with the Domingo Necklace

prepare the soybeans

  • Measure the amount of beans by placing the moon-shaped measuring tool in the petri dish and filling the remaining space with soybeans.
  • Soak the prepared beans in a small container of water overnight.
  • Boil the soybeans in water with a drop of vinegar for 25 minutes.
  • Strain the beans and dry them with a clean cloth.
  • Put them in a bowl and sprinkle with a quarter of the tempeh starter powder.
  • Mix well and place them in your petri dish (removing the moon-shaped measuring tool first).

ferment your tempeh

  • Wear the necklace for the following 2 days against your skin under your shirt
  • When the necklace is not worn, it is recommended to store it in a place with a room temperature between 21°C and 31°C
  • During the night, it can be slipped under the pillow
  • You won’t see any change during the first 15 hours - it’s normal
  • After 15 hours, it begins! You will see white appear
  • When the petri dish is fully white, your tempeh is ready!

cook your tempeh or store it for later

  • You can fry the tempeh in a pan with cooking oil and add it to your meal, with a bit of lime juice or with a drop of your favorite sauce
  • You can also marinate it for several minutes and then fry it
  • If you don’t want to eat it straight away, you can store it in the fridge for a day or freeze it for several days


The Domingo necklace is made of:

  • a 1 mm natural fiber string with with sliding knots or a 1.5 mm wide fairtrade 925 sterling silver curb chain with a spring ring clasp for the silver edition
  • a lightweight petri dish holder designed and 3D printed by us in bioplastic (PLA)
  • a 60 mm diameter glass petri dish with the Domingo Club logo engraved on the back
  • a moon-shaped measuring tool designed and 3D printed by us in bioplastic (PLA)
  • organic split soybeans grown in Italy (non-GMO and no chemicals used during any stage of production)

Get it on our shop