This article was originally published in The Organic and Non-GMO Report

ThermoSeed, a Swedish company, has developed an all-natural steam treatment for seeds that could replace traditional chemical pesticides. The method uses hot, humid air to eliminate pests and pathogens, reducing the need for harmful agrochemicals such as toxic neonicotinoid insecticides. Although initially met with skepticism by farmers, the treatment has shown promising results, increasing crop yields, and protecting the environment.

Background and development

Kenneth Alness, the Swedish innovator behind ThermoSeed, was inspired by a 1950s farming technique that used hot water to treat seeds before chemicals became the norm. He hypothesized that steam could “bathe” seeds to kill pests and pathogens without harming the seeds. After a decade of testing across Europe, ThermoSeed developed tailored recipes for each seed type, using specific combinations of humidity, temperature, and time to optimize results.

In 2008, the Swedish agricultural cooperative Lantmännen became the first to adopt ThermoSeed’s method on a large scale. Since then, the technology has protected rivers, lakes, and soils from an estimated 3,000 cubic meters of chemicals, proving that steam seed treatment can be as effective as chemical alternatives. In Europe, steam-treated seeds have produced 5-10% higher yields, and in Mali, crop yields increased by 27%.

Market success and challenges

ThermoSeed’s success is attributed to growing demand for sustainable agriculture and stricter environmental regulations in Europe, such as the European Union’s Green New Deal, which aims to reduce pesticide use by 50% by 2030. Today, 160,000 tons of seeds globally are treated with ThermoSeed technology, and the company’s clients, which include large agricultural cooperatives in Sweden and Norway, represent significant portions of the certified seed markets.

However, the technology faces financial challenges. The specialized equipment required for steam seed treatment is expensive, and it takes about seven years for buyers to see a return on their investment. This high cost makes it difficult for farmers in ThermoSeed’s success is attributed to growing demand for sustainable agriculture and stricter environmental regulations in Europe, such as the European Union’s Green New Deal, which aims to reduce pesticide use by 50% by 2030. Today, 160,000 tons of seeds globally are treated with ThermoSeed technology, and the company’s clients, which include large agricultural cooperatives in Sweden and Norway, represent significant portions of the certified seed markets.

To address this issue, Alness is working on a more affordable, energy-efficient machine, while Lantmännen BioAgri, which now owns the ThermoSeed method, is developing a faster, remote controlled recipe system to simplify global expansion.

Environmental and health benefits

ThermoSeed offers many advantages over chemical treatments. It eliminates the need for pesticides in the seed treatment process, reducing the contamination of water sources and human exposure to harmful chemicals. Farmers using ThermoSeed treated seeds can handle them without worrying about health risks. Gustaf Forsberg, who wrote his Ph.D. thesis on ThermoSeed, highlights its potential to increase yields and reduce the amount of land needed for farming, making it a more sustainable approach to agriculture.

Global reach and future potential

ThermoSeed is gaining attention worldwide. Alness has met with farmers and agricultural cooperatives in Kazakhstan, India, and China, and he has been recognized for his contributions to sustainability, even receiving a visit from Sweden’s Crown Princess. The company was also one of the finalists for the world’s largest environmental award—The Food Planet Prize. However, the road to global adoption remains challenging, with financial barriers limiting access to the technology in many regions.

Despite these challenges, Alness remains committed to his vision of replacing chemical pesticides with steam seed treatments. His efforts are driven by a deep connection to nature and a desire to protect the environment for future generations. As ThermoSeed continues to expand, it holds the potential to transform global agriculture by providing a safer, more sustainable alternative to chemical seed treatments.