The bioprocess to sustainably revolutionise food production has always been around – now humankind has the knowledge to embrace it.

Process designed by nature

The process takes a single microbe, one of the billion different ones found in nature, and grows it by fermenting it, which is also called a bioprocess. We feed the microbe like you would feed a plant, but instead of watering and fertilising it, we use mere air and electricity. With our current process, this is 20x more efficient than photosynthesis (and 200 times more than meat).

By using fermentation to grow protein, the bioprocess of our first protein product Solein® may not be traditional, but it is natural. And the best part? It won’t run out.

Our production process consists of the five following steps:

  5. FOOD
Petri dish in laboratory

1. Raw materials

A single microbe

Our solution is not a plant or an animal. Instead, it’s a non-modified microbe, one of the billion different ones found in nature. And it is completely natural even though it is not grown traditionally.


The microorganism grows like a plant but instead of water and soil, we feed it with electricity and the main ingredients captured from air: carbon, hydrogen, oxygen and nitrogen.

Renewable energy

We use electricity to split water from air into hydrogen and oxygen. Thanks to renewable power, the efficiency from electricity to calories is about 20%. This means that Solein is 100 times more efficient in converting energy to calories than animals.

Nutrients and minerals

A few percent of the end-product consist of inorganic nutrients, such as phosphorus and calcium, which cannot be taken from the air.

Scientist looking at the Solar Foods bio reactor

2. Natural bioprocess

Humans have used fermentation for thousands of years, brewing beer and making wine with yeast. We use the same process but instead of sugar and yeast, we split water from the air for the microorganisms to live in. Next, we feed them tiny bubbles of CO2 and nutrients, like nitrogen, calcium, phosphorus, and potassium – the same nutrients that plants absorb through their roots from the soil. The microorganisms grow and multiply in a process that is 20 times more efficient than photosynthesis.

Solar Foods spray dryer working

3. Harvesting Solein

As the microorganisms multiply in the water and the liquid grows thicker, some of the slurry is continuously removed and dried up. The resulting dry powder is Solein: it’s made up of whole cells that are up to 70% protein.

Solein is a novel food: nothing like it has ever been available for commercial use before. Growing and harvesting single cells from nature for food was not possible for hunter-gatherers 100,000 years ago – or the modern human race up until today. Solar Foods has made it possible for humankind to now enjoy a new kind of harvest.

4. Functional protein powder

Solein easily vanishes into foods, sweet and savoury, which makes it ideal for virtually any food imaginable. It’s highly nutritious, vegan, and caters to every diet around. The macronutrient composition of the cells is very similar to that of dried soy or algae, but it is more versatile since it has pleasant note of umami flavor and mild aroma.

PROTEIN 65-70 %
FAT 5-8 %
Asian food with Solein protein

5. Endless possibilities

Since our bioprocess does not require land, it can create an infinite food supply for our world. There is no slaughter of animals, cleared forests, pesticides, or fertiliser runoffs in our Solein production process. The possibilities are endlessly sustainable, delicious and nutritious.

The founders walking on the Factory site

Factory 01: Demonstrating the Future of Farming

A new dimension in food production is about to begin. We will detach protein production from agriculture for the first time in history.

The new Solar Foods production facility, called Factory 01, begun construction in 2021 and will be ready to start the production in 2024. It will serve as Solar Foods’ platform for scaling up production, offering the food industry and the public a completely new perspective on the future of food.

Space and beyond

Imagine an astronaut braving outer space on a mission to Mars, a relief worker saving lives in a natural disaster zone, or a researcher living ten months of the year on the cold plains of Antarctica. How do they solve the most basic of questions: how do I feed myself?

Producing protein without traditional agriculture could change our daily meals, but also help people survive in space and beyond. The Solar Foods team studies how Solein production applies in common facility environments, but also in the most challenging conditions known to humanity.