Natural honey is a sweet, thick liquid produced by honey bees from the nectar of flowers. The international food standard maintained by the Codex Alimentarius defines it as the substance bees collect, transform by combining with enzymes of their own, dehydrate, and store in honeycomb to ripen and mature. It is roughly 80 to 85% carbohydrates, 15 to 17% water, and a small but meaningful mix of proteins, minerals, antioxidants, and enzymes that set it apart from refined sugars.
What Honey Is Made Of
The dominant sugars in honey are fructose (about 38%) and glucose (about 30%), with a small amount of sucrose (around 1.3%). This high ratio of simple sugars to water is what gives honey its thick, syrupy texture and its resistance to spoilage. The international standard caps moisture at 20% for most varieties, because anything higher invites fermentation.
Beyond sugar, honey contains trace minerals including potassium, calcium, sodium, magnesium, and iron. It also carries a range of plant-derived antioxidants: phenolic acids like caffeic acid, benzoic acid, and gallic acid, plus flavonoids such as kaempferol, catechin, myricetin, and naringenin. The exact profile shifts depending on which flowers the bees visited, which is why honeys from different regions taste, smell, and look so different from one another.
How Bees Turn Nectar Into Honey
A foraging bee sips nectar from flowers and stores it in a specialized stomach called a crop. During the flight home, enzymes in the crop begin breaking down the complex sugar sucrose into simpler sugars, fructose and glucose. Back at the hive, the bee passes the nectar to house bees, who continue the enzymatic work by chewing and transferring the liquid mouth to mouth.
The other half of the process is physical: water removal. Bees spread the nectar across the comb in thin films and fan their wings to circulate air, evaporating moisture until it drops below about 20%. Some dehydration actually begins before the bee even returns to the nest, with evaporation happening off the bee’s tongue during flight. Once the moisture level is low enough, the bees cap the cell with wax. The honey is now shelf-stable and ready to store.
Why Honey Resists Bacteria
Honey’s antibacterial properties come from several overlapping mechanisms, not just its high sugar concentration. Its pH sits between 3.2 and 4.5, acidic enough to inhibit many common pathogens. That low pH also helps explain why honey has been used on wounds for centuries: it reduces the activity of tissue-damaging enzymes at wound sites and stimulates cells involved in healing.
An enzyme called glucose oxidase, which bees add during processing, slowly converts glucose into hydrogen peroxide. This continuous, low-level release of hydrogen peroxide acts as a built-in disinfectant. On top of that, honey contains a peptide called defensin-1 that bees produce, which is active against a broad range of bacteria. Manuka honey, sourced from a specific plant in New Zealand and Australia, relies on a different antibacterial compound rather than defensin-1, which is part of why it has developed a separate reputation.
Raw Honey vs. Processed Honey
Raw honey is extracted from the comb and strained to remove wax and debris, but it is not heated to high temperatures or pressure-filtered. Commercial honey is often pasteurized at around 80°C (176°F) for a few minutes, then rapidly cooled. This makes the honey smoother, delays crystallization, and extends its clear appearance on store shelves.
The trade-off is that heating honey above 45°C (113°F) destroys its enzymatic activity. That means pasteurized honey loses the glucose oxidase responsible for generating hydrogen peroxide, along with other heat-sensitive compounds. The sugar content and calorie count remain the same, but the biological activity that distinguishes honey from plain sugar syrup is diminished. If the enzymatic and antioxidant properties matter to you, raw or minimally processed honey retains more of them.
Color, Flavor, and Crystallization
Honey color is graded on a scale that runs from “water white” through “extra white,” “white,” and several shades of amber all the way to “dark amber.” Lighter honeys, such as acacia, tend to be mild and floral. Darker varieties, like buckwheat or chestnut, carry stronger, more complex flavors and generally contain higher concentrations of antioxidants. The color comes from the plant source, not from processing.
Crystallization is natural and inevitable for most honeys. It happens because honey is a supersaturated sugar solution: there is more glucose dissolved in the water than the water can permanently hold. Honeys with a higher glucose content crystallize faster, and cooler storage temperatures speed the process, with the optimal crystallization temperature sitting around 14°C (57°F). Crystallized honey is perfectly safe. You can return it to a liquid state by gently warming the jar in warm water, keeping the temperature below 45°C to preserve its enzymes.
How Adulteration Is Detected
Honey fraud is a global concern. The most common form of adulteration is diluting honey with cheap syrups made from corn or sugarcane. These syrups are hard to detect by taste alone because their sugar profiles can mimic honey’s, but their carbon isotope signature is different. Plants like corn and sugarcane process carbon differently than the flowering plants bees typically visit, leaving a detectable chemical fingerprint.
The standard lab test, known as AOAC 998.12, compares the carbon isotope ratio of the honey’s sugars against the ratio found in its own proteins (which come from the bees and pollen). If the sugars show a carbon signature more than 7% out of line with the protein, the honey is flagged as adulterated. More advanced methods now combine multiple isotope measurements to catch subtler forms of tampering. When buying honey, sourcing from a known beekeeper or looking for labels that reference pollen analysis and origin testing gives you a better chance of getting the real thing.
Safety for Infants
Honey should never be given to babies under one year old, in any form. Honey can contain dormant spores of the bacterium that causes botulism. An adult’s digestive system handles these spores without trouble, but an infant’s gut is not yet acidic or microbiologically mature enough to prevent the spores from activating and producing toxin. This applies equally to raw and pasteurized honey, since pasteurization temperatures are not high enough to destroy botulism spores. After a child’s first birthday, the risk drops sharply as the gut matures.