Infrared Drying and the Future of Food Resilience

A few years ago, I was working with the supplement company ALOHA on a Hawaiian-inspired health drink when I realized that none of the ingredients were actually being sourced from Hawaii.

That felt fundamentally inauthentic for a company built around Hawaiian identity and ethical sourcing. I was able to source Hawaiian yellow ginger, but we needed a way to preserve the root’s volatile compounds and aromatic qualities, which are often destroyed through aggressive traditional processing.

It was my first hands-on experience with infrared drying, a newer and far more efficient method of food preservation. Unlike conventional drying systems, which heat the surrounding air first, infrared drying uses radiant energy that penetrates the food directly and evenly. The process is significantly faster, uses less energy, and is far more effective at preserving nutrients, flavor, color, and delicate bioactive compounds. While conventional spray drying and even freeze-drying methods often retain only 70 to 80 percent of a food’s nutrient profile, infrared and refractance-window drying can preserve close to 99 percent. That’s a substantial difference.

Around the same time at ALOHA, we also purchased wild blueberries preserved through another elegant form of technology called refractance-window drying (RWD). Instead of exposing food to extreme heat, RWD places purees, fruits, or plant materials on a transparent film stretched over hot water. Thermal and infrared energy pass gently through the film the way light passes through glass, in a slow transfer of energy that almost self-regulates.

More companies are beginning to adopt these technologies for reasons that extend beyond food quality alone. Nearly 40 percent of all food produced globally is wasted, along with the energy, water, transportation, fertilizer, labor, refrigeration, and land that go into producing it. Much of that waste occurs when perishable foods spoil even before they can be transported, processed, or sold. Once discarded food reaches landfills, it releases methane, a greenhouse gas far more potent than carbon dioxide over shorter periods of time. In this way, food waste creates a climate double whammy: first during production and then again during decomposition.

Infrared and refractance-window drying are not merely food-preservation innovations. They belong to a larger conversation about nutrient density, energy efficiency, food waste, and the resilience of the global food system.

The Food Tech That Built Civilization

Drying is one of humanity’s oldest preservation technologies. Ancient civilizations dried fish, grains, herbs, and fruit long before refrigeration existed. Modern infrared and refractance-window drying are more advanced versions of the same ancient principle: removing moisture while preserving the integrity of the food itself.

Entire civilizations were built around this principle. In ancient cultures, grains, meats, herbs, roots, fruits, and medicinal plants were routinely sun-dried to survive weather, droughts, wars, and migrations. The Nordics dried fish, Middle Easterners dates, Native Americans maize and beans, and Asians seaweed.

Food drying allowed humans to travel long distances, build trade routes, survive climate instability, and feed armies. Cities could be developed that were independent of local harvest cycles. That autonomy extends into today’s world, where some of our largest commodities—coffee, tea, pasta, rice, protein powders, cereals, supplements, and infant formula—are all dried products.

But while industrial drying methods improved scale, flavor, color, texture, and delicate nutrients were often sacrificed through excessive heat. Modern infrared and refractance-window drying represent a necessary evolution in food science if we are to preserve global nutrition.

The Crops We Choose to Scale

The future of preservation determines which crops become commercially viable. Take quinoa, the Andean grain that became a wildly popular “superfood” at the turn of the century. In 2013, the UN even declared it the International Year of Quinoa, a branding move that accelerated its rise in the global market. The explosion in demand raised prices and intensified farming pressure across parts of South America. The resulting harsh treatment of workers and depletion of soil nutrients was similar to what’s been happening more recently with the astronomical boom in the avocado industry.

Simultaneously, many other grains were being overlooked, such as kañiwa, an Andean grain related to quinoa that is often called “baby quinoa.” Though it is smaller, and technically a seed, it has several nutritional advantages. It is higher in protein, rich in iron and antioxidants, and lacks the bitter saponin coating that requires quinoa to be heavily washed. Without this coating, it can also be sprouted and eaten more easily.

The future of food innovation, thus, depends less on inventing new foods and more on preserving overlooked ones. Crops become global not because they are inherently superior but because they can be stored, powdered, branded, and commercialized at scale. Preservation technology in this way shapes which regions prosper, which crops survive economically, and which food systems are sustainable.

Food Resilience, Mental Resilience

Food preservation systems also have enormous geopolitical implications that affect a culture’s mental resilience far more than we realize. At a basic level, nutrient quality affects cognitive function, mood regulation, energy, inflammation, and overall brain health. But preservation systems also determine which regions can reduce food waste, which communities can participate in global food systems, and how much energy the food industry at large consumes.

Ultimately, food preservation directly determines a society’s resilience. Food insecurity, rising food costs, climate volatility, crop failures, and supply-chain disruptions all increase collective stress. Communities experiencing scarcity or instability tend to show higher levels of anxiety, aggression, migration pressure, and social fragmentation. Historically, food instability has often preceded political instability.

Infrastructure, Not Luxury

While the equipment itself can be expensive upfront, the long-term economics of infrared and refractance-window drying become compelling at scale for all of these reasons. Local farmers often cannot afford advanced preservation infrastructure on their own, which is why governments and large institutions should begin treating these systems the way they treat other forms of critical infrastructure.

I don’t see infrared and refractance-window drying as niche technologies. I see them as fundamental tools for advancing our world and protecting our resources. The future of food may depend less on inventing entirely new ingredients and more on preserving existing ones intelligently.

The societies that learn how to waste less, preserve more nutrients, reduce energy consumption, and commercialize overlooked crops responsibly will ultimately build more stable, resilient economies and healthier populations in the process.