More water, more acid, a sugar nobody expected, and antimicrobial protection that comes partly from tree resin rather than from the honey itself.
Honey scienceReviewed 2026-08-03
The sugar nobody expected
Apis honey is dominated by fructose and glucose, with sucrose almost fully inverted and only traces of anything else. Australian work on Tetragonula carbonaria honey found something different: trehalulose, a rare disaccharide, present as a major and sometimes dominant component. It is an isomer of sucrose, it does not crystallise readily, and it is digested slowly enough that it has attracted commercial interest.
That finding did two useful things. It gave the category a chemical marker distinctive enough to detect adulteration with Apis honey or syrup, and it explained a long-standing puzzle — why stingless bee honey does not granulate even at sugar concentrations where Apis honey would.
Preserved by acid and resin rather than by concentration
Apis honey is safe because it is concentrated: water activity around 0.5 to 0.6 leaves nothing available for microbes. Meliponine honey at 28 per cent water has a water activity closer to 0.75, which by that logic should be perishable — and it is, comparatively. What protects it is a different combination: markedly higher organic acid content, a lower pH, and antimicrobial compounds leaching from the plant resins the storage pots are built from.
What varies, and why comparisons are hard
Meliponine honey varies far more than Apis honey does, for a structural reason: over five hundred species, each with its own resin sources, pot construction and foraging radius, across four continents. A figure quoted for stingless bee honey in general is usually a figure for one species in one place, and the range across the category is wide enough that generalisation is genuinely risky.
Moisture: roughly 19 to 42 per cent has been reported across species, clustering around 25 to 30.
pH: about 3.0 to 4.5, generally below Apis honey.
Sugar profile: fructose-dominant in most species, trehalulose-dominant in some Australian ones.
Electrical conductivity: broadly overlapping Apis honey but with a wider spread.
The regulatory consequence
Because the Codex standard caps moisture at 20 per cent and specifies sugar ratios derived from Apis honey, genuine stingless bee honey fails it on arrival. Brazil has issued separate specifications; Australia has pursued the same route; Malaysia has a kelulut standard. The alternative — testing an indigenous product against a standard written for a different animal and calling it substandard — is the sort of category error this catalogue exists to point out.
The claims on this page
Every substantive claim is placed on a tier, and the top two tiers must also state what they are not claiming.
Emerging research
Real studies exist and point somewhere, but they are small, in vitro, in animals, or not yet replicated. Direction is not the same as a result.
Emerging research
Trehalulose has been identified as a major and sometimes dominant sugar in some stingless bee honeys, unlike in Apis honey.
Confirmed at 13 to 44 g per 100 g in honey from five stingless bee species in Australia, Malaysia and Brazil; in Apis honey it had been reported only as a minor sugar. Trehalulose does not readily crystallise, which fits the category's resistance to crystallisation, and the authors propose it as an authenticity marker.
What this does not claim: This is not a claim that trehalulose confers a health benefit. Low-glycaemic and dental-health claims have been made commercially on the back of this finding and go well beyond what the chemistry establishes.
Stingless bee honey, a novel source of trehalulose: a biologically active disaccharide with health benefits — Scientific Reports (2020) · Peer-reviewed articleLink
Emerging research
Some of the antimicrobial activity reported in stingless bee honey appears to derive from plant resins in the storage pots rather than from the nectar.
A plausible and partially supported explanation for how a honey at 28 per cent moisture resists spoilage. The evidence is laboratory-based and the relative contribution of resin, acidity and hydrogen peroxide is not settled.
What this does not claim: Antibacterial activity in a petri dish is not a demonstrated clinical effect in a person, and nothing here supports using this or any honey as a medicine.
How do these honeys actually differ, beyond colour?
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