Metcalfa honeydew honey

Moderately sweet with a distinct fig and dried-fruit character over a malty base — noticeably fruitier than the conifer honeydews and quite unlike them.

HoneydewModerateMaltyFruityMineral and saline

Miele di melata di Metcalfa

HoneyHQ reference sheet — honeyhq.app/honey/metcalfa-honeydew-honey, record reviewed 2026-08-02. Values describe the honey type, not any one jar; sources are listed at the end.

A honeydew honey that did not exist before 1979, produced from the excretions of an American planthopper that arrived accidentally in Italy and spread across southern Europe. It is a genuinely new honey created by an invasive insect, and Italian beekeepers found themselves with a substantial late-summer crop from a pest nobody wanted.

Flavour and aroma

Intensity
Moderate, step 3 of 5, from delicate to intense
Sweetness
Moderate, step 2 of 5, from restrained to intense
Bitterness
Trace, step 2 of 4, from none to pronounced
Acidity
Low, step 1 of 3, from low to bright
Finish
Medium, step 2 of 3, from short to longFrom the tasting panel's persistence rating.

Each scale is a set of named steps, not a measurement: the boxes show order, and equal spacing does not mean equal differences.

Metcalfa honeydew honey on the flavour mapFlavour families in this honey: malty, fruity, mineral and saline, molasses and treacle. The full list follows the drawing.floralfruitycitrusherbaceousvegetalcaramelbutterymaltynuttymolassesresinouswoodysmokyspicyphenolicmineralwaxyanimalThis honey
  • Floral and fruity: floral, fruity (present), citrus
  • Green and herbal: herbaceous, vegetal
  • Warm and cooked: caramel, buttery, malty (present), nutty, molasses and treacle (present)
  • Woody and resinous: resinous, woody, smoky
  • Spicy and sharp: spicy, phenolic and medicinal
  • Earthy and mineral: mineral and saline (present), waxy, animal and barnyard
Aroma
dried fig, molasses, warm wood
Flavour
fig, dried fruit, malt, light mineral
Finish
Medium and malty.
Flavour character
  • Floral and fruity — fruity
  • Warm and cooked — malty, molasses and treacle
  • Earthy and mineral — mineral and saline

Checked against a trained tasting panel

A trained panel's published description of this honey type exists, and the scales on this page are compared with it below. Panels describe populations of honey from a stated region and period; a single jar can differ.

Reference: Metcalfa pruinosa honeydew honey, 153 samples — Main European unifloral honeys: descriptive sheets; Sensory analysis applied to honey: state of the art.

How this page compares with the panel (5 of 5 agree)
This page’s scales beside the tasting panel’s
ScaleThis pagePanelAgrees
SweetnessModeratemediumYes
AcidityLowweakYes
BitternessTraceabsentYes
CrystallisationVery slowslowYes
FinishMediummediumYes

“Differs” is kept visible rather than hidden: the panel described honey from one region and period, and a record covering a wider production can honestly sit outside it.

Sourced odour and aroma descriptors

Only what a trained panel or an official honey specification has said, grouped by the International Honey Commission’s odour-and-aroma families. Each entry says which.

  • Floral – fresh fruit — Flowers and fresh fruit — split by panels into floral and fruity

    • Fresh fruit· panel: Trained tasting panel
  • Warm — Caramel, toffee, malt, cooked sugar — the notes of browning

    • Warm· panel: Trained tasting panel
  • Woody — Wood, resin, dry leaves, spice — the register of chestnut, heather and honeydew

    • Woody· panel: Trained tasting panel
  • Vegetal — Green, grassy, hay and cut-stem notes

    • Vegetal· panel: Trained tasting panel
The sources’ own words (0 quoted)

    Sources

    • Main European unifloral honeys: descriptive sheets — Apidologie, 2004 (10.1051/apido:2004049).
    • Sensory analysis applied to honey: state of the art — Apidologie, 2004 (10.1051/apido:2004048).

    A specification describes honey sold under one protected name from one region; a panel describes the samples it tasted. Neither promises what a particular jar will taste of.

    Colour, texture and crystallisation

    Colour
    1. Water white0–8 mm
    2. Extra white8–17 mm
    3. White17–34 mm
    4. Extra light amber34–50 mm
    5. Light amber50–85 mm
    6. Amber85–114 mm — this honey
    7. Dark amber114+ mm — this honey
    Pfund grades, palest to darkest. Outlined: where this honey usually falls. Swatches are illustrations; real colour depends on depth, container and light.

    Dark amber to brown, sometimes with a greenish cast.

    Texture
    Thick but pourable; Runny
    Crystallisation
    Very slow, step 1 of 5, from very slow to very fast

    Very slow — often still liquid after a year or more.

    Very slow, in common with honeydew honeys generally — low glucose and a high oligosaccharide content both suppress crystallisation.

    Typical composition

    Moisture
    15–18.5% (typically 16.5%)
    Fructose
    30–37% (typically 33%)
    Glucose
    18.8–31% (typically 23.9%)
    pH
    4.2–5.7 (typically 5)
    Electrical conductivity
    1.21–2.17 mS/cm (typically 1.69 mS/cm)

    These are typical ranges assembled across published work, not measurements of a specific honey.

    What these mean: the sugars and the ratio · moisture · conductivity · how each is measured

    The insects behind it

    Honeydew honey has three parties: the tree whose sap is the raw material, the sap-feeding insect that excretes the surplus as honeydew, and the bee that collects it. These are the insects documented for this honey, and how each link is known.

    • Metcalfa pruinosa — citrus flatid planthopper

      Planthopper (Flatidae) on a very wide range of trees, shrubs and crops · Italy, Slovenia, France, Türkiye · Named in a reference description

      The only honeydew honey the European reference descriptions keep separate from the pooled honeydew class, because its chemistry is distinct: the highest conductivity of any type described, acidity that can exceed the general legal limit, and a high dextrin content.

    Checked 2026-09-29 against: Main European unifloral honeys: descriptive sheets (2004); Honeydew producing insects in some forests of Turkey and their potential to produce of honeydew honey (2020). Where honeydew comes from.

    What laboratories and tasting panels measured

    From the European reference description of Metcalfa pruinosa honeydew honey: 153 authentic samples pooled by the International Honey Commission. These describe a population of honeys, not this or any particular jar — the standard deviations and sample counts are here so that no mean is mistaken for a specification.

    Metcalfa pruinosa honeydew honey: laboratory reference values
    ParameterMeanStandard deviationLimitsSamples
    Colourmm Pfund100.8± 7.585.9 to 115.782
    Electrical conductivitymS/cm1.69± 0.241.21 to 2.17104
    Specific rotation[α]D2017.5± 6.54.5 to 3083
    pHpH5± 0.34.5 to 5.797
    Free aciditymeq/kg37.2± 6.624.5 to 50.3116
    Lactonesmeq/kg4± 1.21.5 to 6.4116
    Total aciditymeq/kg41.2± 730 to 55.1116
    Waterg/100 g15.9± 0.714.4 to 17.441
    Diastase activitySchade units (DN)39.3± 7.923.5 to 52.7108
    Invertase activityU/kg172± 21.4135.9 to 215.145
    Prolinemg/kg515± 173254 to 86027
    Fructoseg/100 g31.6± 3.225.3 to 37.9112
    Glucoseg/100 g23.9± 2.718.8 to 29112
    Sucroseg/100 g0.1± 0.10 to 0.3112
    Fructose + glucoseg/100 g55.5± 4.546.6 to 64.3112
    Fructose ÷ glucoseratio1.34± 0.180.98 to 1.69112
    Glucose ÷ waterratio1.51± 0.181.22 to 1.8641

    How a trained panel describes it

    Colour
    Very dark; normal honey colour
    Odour
    Medium — Woody, Floral – fresh fruit (fruity), Warm, Vegetal
    Aroma in the mouth
    Medium — Woody, Floral – fresh fruit (fruity), Warm, Vegetal
    Taste
    Sweetness medium; acidity weak; bitterness absent
    Persistence
    Medium
    Other sensations
    Sometimes astringent
    Crystallisation
    Slow

    It is very commonly of a very thick consistency, due to a low water content.

    The family names are a trained-panel vocabulary: woody means wood, resin, dry leaves, spice — the register of chestnut, heather and honeydew; floral – fresh fruit means flowers and fresh fruit — split by panels into floral and fruity; warm means caramel, toffee, malt, cooked sugar — the notes of browning; vegetal means green, grassy, hay and cut-stem notes. How panels taste honey.

    What each measurement tells you
    Colour
    Depth of colour on the Pfund scale — 0 is water-white, above 114 is dark amber. Tracks minerals and phenolic compounds, and darkens with heat and age.
    Electrical conductivity
    How well a honey solution carries current, which rises with its mineral and acid content. The main official test separating honeydew and chestnut honeys (high) from most blossom honeys (low).
    Specific rotation
    The direction in which the sugars turn polarised light. Fructose turns it left, so blossom honeys read negative; honeydew honeys carry oligosaccharides that turn it right and read positive.
    pH
    Acidity as a logarithmic scale. Honey is always acidic; honeydew and chestnut honeys sit highest because their minerals buffer the acids.
    Free acidity
    The acid present as free acid, mostly gluconic acid made by the bee enzyme glucose oxidase. Rises with fermentation, which is why it has a legal ceiling.
    Lactones
    Acid held in lactone form — the reserve that free-acidity titration does not see. Added to free acidity to give total acidity.
    Total acidity
    Free acidity plus lactones.
    Water
    Moisture content. Decides whether a honey can ferment and how fast it pours; set by the nectar, the weather and how long the bees ripened it.
    Diastase activity
    Activity of the starch-digesting enzyme the bees add. Falls with heating and storage, so a low value in a honey that should be high suggests heat or age — but some honeys, citrus and acacia among them, are naturally low.
    Invertase activity
    Activity of the bee enzyme that splits sucrose into glucose and fructose. More heat-sensitive than diastase, and a sharper indicator of freshness and gentle handling.
    Proline
    The main free amino acid, mostly from the bees' own secretions. A low value is one signal of sugar-syrup dilution or of an unripe honey.
    Fructose
    The sweeter, more soluble of the two main sugars. Honeys rich in it stay liquid.
    Glucose
    The less soluble of the two main sugars and the one that crystallises. Honeys rich in it set quickly and finely.
    Sucrose
    Ordinary sugar, mostly split by the bees during ripening. A few honeys — lavender, acacia, citrus — keep more of it naturally, which is why their legal limits are higher.
    Fructose + glucose
    The two main sugars together. Lower in honeydew honeys, which carry more oligosaccharides — melezitose, erlose and others — made by the insects that produced the honeydew.
    Fructose ÷ glucose
    The single best predictor of whether a honey crystallises. Below about 1.1 it sets quickly; above about 1.3 it tends to stay liquid for a long time.
    Glucose ÷ water
    How much glucose there is for each part of water. Above about 2.1 the solution is supersaturated enough to crystallise fast; below about 1.7 it crystallises slowly or not at all.

    Population: Authentic unifloral honeys produced in 21 countries of the European geographical area, analysed by 20 laboratories in 11 countries of the International Honey Commission working group formed in 1998; published 2004.

    Electrical conductivity and specific rotation are expressed on honey dry matter; every other value on the honey as it is.

    Diastase and invertase are given for fresh honeys only; both fall with age and heating.

    The limits are the source's 95% confidence limits, replaced by the observed minimum or maximum wherever the limit would have fallen outside the data.

    Free acidity in this honey can exceed the 50 meq/kg limit the EU directive sets for honey generally; its sugar spectrum also includes a high dextrin content.

    Checked 2026-09-29 against: Main European unifloral honeys: descriptive sheets (2004); Sensory analysis applied to honey: state of the art (2004). Descriptive sheet, pp. S80–S81.

    Where it comes from

    Floral source
    Honeydew excreted by Metcalfa pruinosa, a North American planthopper feeding on a very wide range of trees and shrubs — including grapevine, hazel, ash, robinia and many garden plants.
    Origins
    Italy principally, and increasingly Slovenia, Croatia, France, Spain and Hungary as the insect has spread.
    Origin pages

    Resolved from both directions — origins this honey names, and origins that name it.

    Typical harvest
    July to September (northern hemisphere)

    Late summer, and the timing depends on planthopper populations rather than on any flowering.

    A typical window for the honey type, HoneyHQ synthesis — not a calendar for any one place.

    The bees
    Honey bees collect the honeydew from leaves and stems. Because Metcalfa feeds on such a wide range of host plants, the honey is not tied to any one tree, which is unusual for a honeydew and makes it available in landscapes with no forest at all.
    Usual processing
    Raw, Coarsely strained, Spun (centrifugally extracted)

    Yield tracks planthopper populations, which are large in warm years. Because the insect is a pest of vineyards and orchards, insecticide programmes directly affect the crop — an unusually direct conflict.

    Sourced periods for this honey

    Read from a source for the place named, and kept apart from the typical windows elsewhere on HoneyHQ, which are synthesis. Flowering, nectar flow and harvest are different periods.

    • Honeydew flow: Citrus flatid planthopper on a very wide range of trees, shrubs and crops — June–August

      Italy · northern hemisphere · Season words; months derived · Peer-reviewed study

      Summer.

      An introduced planthopper on a very wide range of trees, shrubs and crops.

      Source: Main European unifloral honeys: descriptive sheets. Checked 2026-10-31.

    Italy: what the sources document, month by month
    PhaseJanFebMarAprMayJunJulAugSepOctNovDec
    FloweringNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either way
    Nectar flowNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either way
    Honeydew flowNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either way
    HarvestNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either wayNot documented either way

    ● documented as happening, from a period given in months. – not documented either way: no source read here says, which is not the same as nothing happening. Periods given only in season words or as an onset are listed above but leave their months dashed.

    JanFebMarAprMayJunJulAugSepOctNovDecItalyCitrus flatid planthopper on a very wide range of trees, shrubs and cropsDFFloweringNNectar flowDHoneydew flowHHarvestMonths as the source states themMonths derived from season words
    1 periods in 1 place, each read from a source for that place: Italy, Citrus flatid planthopper on a very wide range of trees, shrubs and crops, honeydew flow June–August (season words; months derived). This is a partial calendar: it shows only the places HoneyHQ has read a source for, and is not a guide to any other place. Months derived from season words use the meteorological seasons for the hemisphere. Sources: Main European unifloral honeys: descriptive sheets. Drawing: HoneyHQ (HEKNO Ltd), original.

    Every sourced period, on the honey atlas

    What to do with it

    Its low sweetness and fig note make it a natural cheese honey, and it works in baking where a fruitier depth is wanted.

    At the tableWith cheeseDrizzlingBakingDesserts

    Pairings

    • Aged pecorino and parmesanClassic

      The Italian pairing; fig and hard sheep cheese is a combination that predates the honey by centuries.

    • Fresh figs and walnuts

      The honey already tastes of figs, which makes this straightforward.

    • Panforte and dense fruit cakes

      Dried fruit against dried fruit.

    Pairing pages this honey appears on

    Selected by this honey’s own recorded intensity, flavour families and uses rather than by anything written above — each page prints the rule that put it there.

    Similar honeys and substitutes

    Three different questions with different answers: a honey that tastes alike can behave differently in a recipe, and the same set texture says nothing about flavour. Each list is chosen from the recorded fields that matter to its question — and, where tasting panels or specifications described both honeys, the terms they share — and every suggestion says which, and what will be different. Compare it side by side or build a tasting flight.

    Tastes similar

    If you like this honey, try

    • Tamarisk honey

      Similar because

      • Both mineral, malty and molasses
      • Close in intensity — pronounced
      • Shares its bitterness
    • Sycamore honeydew honey

      Similar because

      • Both malty, mineral and molasses
      • Same intensity — moderate
      • Shares its bitterness
    • Beech honeydew honey

      Similar because

      • Both malty, mineral and molasses
      • Close in intensity — pronounced
      • Shares its bitterness

    Cooks similarly

    If it is not available for a recipe, use

    • Greek fir honey

      Similar because

      • Same intensity (moderate), so it shows through a recipe to the same degree
      • Recorded for the same uses: at the table, drizzling and with cheese
    • Sycamore honeydew honey

      Similar because

      • Same intensity (moderate), so it shows through a recipe to the same degree
      • Recorded for the same uses: at the table, with cheese and baking
    • Orange blossom honey

      Similar because

      • Same intensity (moderate), so it shows through a recipe to the same degree
      • Recorded for the same uses: at the table, drizzling and desserts

      Different: noticeably paler — expect less colour and a lighter taste in a bake; a nectar honey rather than a honeydew one

    Same texture

    For the same feel in the jar, try

    • Greek fir honey

      Similar because

      • Also sold thick but pourable and runny
      • Crystallises at the same very slow rate
      • Same variable crystal when it sets
    • Beech honeydew honey

      Similar because

      • Also sold thick but pourable and runny
      • Crystallises at the same very slow rate
      • Same variable crystal when it sets

      Different: stronger flavour (intensity: pronounced)

    • Vosges fir honey

      Similar because

      • Also sold thick but pourable and runny
      • Crystallises at the same very slow rate
      • Same variable crystal when it sets

      Different: stronger flavour (intensity: pronounced)

    History and traditional use

    Metcalfa pruinosa was first recorded in Europe near Treviso in 1979, almost certainly arriving with imported plant material. It spread rapidly across Italy and beyond. Within a decade beekeepers had a new honey, which is a rare instance of a biological invasion producing a marketable product rather than only costs.

    Sources

    • HoneyHQ editorial synthesis — HEKNO Ltd · HoneyHQ synthesis
    • Council Directive 2001/110/EC relating to honey — Council of the European Union (2001) · Regulatory guidance Link

    How sources are selected and weighted is set out in the sources and evidence policy.

    Guides that cover this honey

    Tools for choosing and using honey

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