Chocolate honey made from cocoa waste, ultrasound and stingless bees combines taste and sustainability without added sugars.
In Brazil, a group of researchers found a surprising way to unite two worlds we’d rarely think of seeing together: honey and chocolate. Not in that sugary spread-on-bread form, but in a completely natural version, where the sweetness comes only from bees and the aroma arrives from cocoa bean husks. Yes, those very scraps nobody considers, which turned out to be a treasure trove of precious compounds.
The idea was as simple as it was brilliant: use honey as the only solvent, without alcohol and without chemicals, to extract from cocoa husks molecules like theobromine, caffeine, and phenolic compounds, all substances known for cardiovascular benefits and antioxidant properties. Felipe Sanchez Bragagnolo, first author of the study developed at the University of Campinas, describes it almost with a smile: the flavor is what strikes you immediately, but the nutritional content makes the product far more interesting than it seems at first taste.
How it’s made
Those who’ve tried it speak of a chocolate note so clear it seems almost magical, and depending on the proportion between honey and husks, the aroma can become more intense or more delicate. In their initial phase, the researchers conducted chemical tests and some sensory trials. The next steps will be more in-depth, but already the feeling is that this honey could end up directly on the spoon, or inside beverages, creams, sweets and, why not, even cosmetics.
The most fascinating part of the research isn’t just the final result, but the chosen method. No petroleum-derived solvents, no alcohol: only ultrasound. A metal probe enters a mixture of honey and powdered husks and “shakes” it with sound waves that generate microbubbles. When they collapse, they release small energy charges capable of opening the cell walls of the plant material. And at that point, the cocoa compounds naturally pass into the honey.
This technique works particularly well with honeys from stingless bees. Unlike that produced by European bees, these honeys are more liquid and contain more water. They seem almost born to act as an “edible solvent,” and facilitate the diffusion of molecules from the husks. The team tested five of them, all Brazilian, from jataí to borá, and perfected the procedure with mandaguari honey, which had the best consistency. Once optimized, the protocol worked with the others too. The message is simple: each region can use its own honey and obtain a local version of the product. A small revolution in a country dreaming of a more territory-rooted bioeconomy.
Innovation, taste and sustainability
It’s no small detail, because this “cocoa” honey isn’t just a gastronomic novelty. It’s also an intelligent solution to reduce waste, valorize cocoa processing scraps, and give new space to producers of honeys from native bees. Not coincidentally, the entire process obtained a positive sustainability index, evaluated with Path2Green, the tool developed by UNICAMP to measure the environmental impact of technologies. The use of an edible, local, ready-to-use solvent, together with the reduction of steps and energy consumption, made the method surprisingly “clean.”
Meanwhile, the university’s innovation agency, INOVA, has already begun seeking companies interested in licensing the patent. According to the researchers, a small laboratory that processes both cocoa and local honeys could produce this aromatic honey without disrupting its organization. An opportunity for cooperatives, farmers, and artisan operations wanting to diversify production with something new and valuable.
Another question the researchers are studying concerns preservation. Honeys from stingless bees don’t have the same stability as classic honey: they often need refrigeration or treatment to reduce microbial risk. Ultrasound, however, could have an effect on microorganisms too. If confirmed, the process would make the honey more stable and easier to preserve, without the need for high temperatures or other invasive treatments.
The possible applications are many. In cooking, it could become a natural aromatic base for glazes, creams, ice creams, coffee, and energy drinks. In cosmetics, instead, the union between antioxidant phenolics, theobromine, and honey’s natural ability to retain hydration opens the way to skin care formulas with a decidedly “green” profile.
And there’s one last element that makes this project even more interesting: choosing honeys from stingless bees means giving value to biodiversity. These bees, often overlooked compared to the better-known Apis mellifera, are fundamental to Brazilian ecosystems and produce unique honeys, strictly linked to local flora. Each jar of chocolate honey could therefore tell a different story, made of territory, native species, and landscape care.
Perhaps it’s too early to say when we’ll see it on shelves. But the direction is already clear: it’s not just about a new flavor, but a new way of imagining food, where science and sustainability work together to transform waste into resources and pleasure into knowledge.
If honey has always tasted of nature, today it might start to taste a bit of wonder too.