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Cider apple

Kingston Black

The most celebrated English single-varietal cider apple: a small dark-red bittersharp carrying acid and tannin in one fruit, and a tree difficult enough that its reputation has always outrun its plantings.

Also written Kingston Black Apple, Black Taunton.

Classification
Bittersharp — Long Ashton classification
Harvest
Mid (Late September to mid October)
Single varietal
Established as a single-varietal cider
Blend role
Vintage quality, Acid lift, Tannin and structure, Aroma
Origin
Kingston St Mary, near Taunton, Somerset
Species
Malus domestica
Flowering
Pollination group 4
Vigour
Moderate
Biennial bearing
Severely biennial — a substantial crop only every other year
Keeping
Poor — mill soon after picking

How it is classified

Classified under more than one system. The systems use different thresholds and were built for different fruit, so the answers can legitimately differ — that is a fact about the schemes, not a contradiction.

Long Ashton classification

Bittersharp

High acid and high tannin together — the rarest and, for a single-varietal cider, the most useful class.

Basis: Above about 0.45% w/v acid and above about 0.2% w/v tannin.

The classic bittersharp of the scheme, though its tannin sits close to the 0.2% w/v boundary and in a low-tannin season the fruit can read as a sharp.

Long Ashton classification

Sharp

High acid, low tannin. Includes both purpose-grown sharps and many culinary apples.

Basis: Above about 0.45% w/v acid and below about 0.2% w/v tannin.

Assessed in Seasons and sites where tannin falls below the threshold.

Recorded because the placement genuinely varies: Kingston Black is a borderline case on the tannin axis, and describing it as unambiguously bittersharp overstates what the analysis supports.

Every classification on CiderHQ names its system. Why there is more than one.

What it contributes to a blend

A direction, not a measurement. These bands are the level of resolution the evidence supports, and they say which way adding this fruit pushes a blend rather than what the finished cider will be.

Contribution to a blend, scored 1–5 as a band. The filled segment is the typical value; the paler segments are the range.
AxisTypicalRange
AcidHigh
TanninModerate
SugarHigh
BitternessModerate
AstringencyNoticeable
AromaPronounced
BodyFull
Based on: published analysis

Long Ashton acid and tannin ranges for the cultivar, with wide bands on tannin because the measured value straddles the classification threshold.

Delivers acid, moderate tannin and a distinct fruit aroma from one fruit, which is why it can make a complete cider without a blending partner.

Aroma

No aroma descriptors are recorded for Kingston Black, and for a great deal of cider fruit that is a finding rather than a gap. Bittersweet apples in particular contribute tannin, sugar and body while being close to aromatically mute, and most of what a cider made from them smells of was produced by the fermentation rather than carried in by the fruit. CiderHQ publishes the absence rather than filling the space with descriptors nothing supports.

Put Kingston Black into a blend

Measured analysis

Each figure is shown with where and when it was taken. They are not averaged: the same cultivar grown in another climate genuinely gives different numbers, and collapsing them into one would be the most misleading thing this page could do.

Measured on the fruit

Measured on the fruit itself, before anything was done to it. These figures hold whatever was later made from the juice.

Reported analyses of Kingston Black, by property and source — measured on the fruit
PropertyReadingWhereWhenSource
Fruit diameter2 readings, spanning 61–66 mm61 mmWSU Mount Vernon NWREC, Skagit Valley, Washington, USA2002–2017Modern analysisWashington State University Northwestern Washington Research and Extension Center
66 mm (53–79)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
Fruit weight2 readings, spanning 43–131 g131 g (71–191)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
43 gNew York State Agricultural Experiment Station, Geneva, New York, USAlate 1970sHistoric analysisAVI / Van Nostrand Reinhold, New York, 1989, edited by Donald L. Downing (ISBN 0-442-22117-7)
Fruit firmness41.8 N (29.9–53.6)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
Juice yield375 L/tWSU Mount Vernon NWREC, Skagit Valley, Washington, USA2002–2017Modern analysisWashington State University Northwestern Washington Research and Extension Center
Starch pattern index7.9 SPI (7.6–8.1)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit

Measured on the juice

Measured on juice as pressed, before fermentation. This is where most cider analysis lives and what the classification schemes are defined on.

Reported analyses of Kingston Black, by property and source — measured on the juice
PropertyReadingWhereWhenSource
Total acid3 readings, spanning 0.580–0.610 % w/v0.500–0.700 % w/vLong Ashton, Somerset, EnglandLong Ashton analyses, 1903–1985Historic analysisNational Fruit and Cider Institute / University of Bristol
0.610 % w/vWSU Mount Vernon NWREC, Skagit Valley, Washington, USA2002–2017Modern analysisWashington State University Northwestern Washington Research and Extension Center
0.580 % w/vLong Ashton Research Station, near Bristol, Somerset, England1905–1975Historic analysisAndrew Lea
Total tannin3 readings, spanning 0.150–0.200 % w/v0.150–0.220 % w/vLong Ashton, Somerset, EnglandLong Ashton analyses, 1903–1985Historic analysisNational Fruit and Cider Institute / University of Bristol
0.150 % w/vWSU Mount Vernon NWREC, Skagit Valley, Washington, USA2002–2017Modern analysisWashington State University Northwestern Washington Research and Extension Center
0.200 % w/vLong Ashton Research Station, near Bristol, Somerset, England1905–1975Historic analysisAndrew Lea
Brix2 readings, spanning 12.5–13.3 °Bx13.3 °BxWSU Mount Vernon NWREC, Skagit Valley, Washington, USA2002–2017Modern analysisWashington State University Northwestern Washington Research and Extension Center
12.5 °Bx (11.3–13.8)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
pH2 readings, spanning 3.51–4.23 pH3.51 pHWSU Mount Vernon NWREC, Skagit Valley, Washington, USA2002–2017Modern analysisWashington State University Northwestern Washington Research and Extension Center
4.23 pH (4.22–4.24)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
Fructose82.8 g/L (68.5–97.1)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
Glucose28.9 g/L (16.1–41.7)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
Sorbitol11.9 g/L (11.3–12.5)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
Specific gravity1.055 SGWSU Mount Vernon NWREC, Skagit Valley, Washington, USA2002–2017Modern analysisWashington State University Northwestern Washington Research and Extension Center
Sucrose42.7 g/L (21.3–64.1)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
Titratable acidity2.1 g/LUSDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit
Total phenolics1080.0 mg/L (810.0–1350.0)USDA-ARS Plant Genetic Resources Unit, Geneva, New York, USA2017Modern analysisCornell University / USDA-ARS Plant Genetic Resources Unit

Measured on the finished drink

Measured on the finished drink, after fermentation. Not comparable with the juice figures above: fermentation, fining and time move all of these, and phenolics in particular fall substantially.

Reported analyses of Kingston Black, by property and source — measured on the finished drink
PropertyReadingWhereWhenSource
pH (finished cider)3.56 pHNew York State Agricultural Experiment Station, Geneva, New York, USAlate 1970sHistoric analysisAVI / Van Nostrand Reinhold, New York, 1989, edited by Donald L. Downing (ISBN 0-442-22117-7)
Total acid (finished cider)0.580 % w/vNew York State Agricultural Experiment Station, Geneva, New York, USAlate 1970sHistoric analysisAVI / Van Nostrand Reinhold, New York, 1989, edited by Donald L. Downing (ISBN 0-442-22117-7)
Total tannin (finished cider)0.062 % w/vNew York State Agricultural Experiment Station, Geneva, New York, USAlate 1970sHistoric analysisAVI / Van Nostrand Reinhold, New York, 1989, edited by Donald L. Downing (ISBN 0-442-22117-7)

6 properties here have been measured more than once. The readings are shown as they were taken and are deliberately not averaged — climate, season, ripeness at picking, the age of the tree and the analytical method all move these numbers, and a single figure would hide every one of them. Where a spread is given below a property, it is the distance between separate studies, not the variation within any one of them.

How these were measured
  • Titration of pressed juice, reported as malic acid
  • Permanganate titration against indigo carmine, reported as tannic acid equivalent
  • Titration, reported as malic acid equivalent
  • Published as 2.42 inches; converted at 25.4 mm to the inch
  • Juice pressed from 25 fruit, 2015–2017 only. Published as 170 mL/lb; converted at 2.204623 lb to the kilogram
  • Mean of the fruit sampled per accession; where a bracket is shown it is one standard deviation either side of the mean, not the observed range. Published to two decimal places and shown at the precision CiderHQ displays for the unit.
  • Mean of the fruit sampled per accession; where a bracket is shown it is one standard deviation either side of the mean, not the observed range.
  • Cornell generic starch–iodine chart, 1–8, where 1 is no hydrolysis and 8 is complete. Mean of replicate fruit; a bracket, where shown, is one standard deviation either side of it.
  • Penetrometer, mean of replicate fruit; a bracket, where shown, is one standard deviation either side of the mean.
  • Refractometer on pressed juice. Mean of replicates; a bracket, where shown, is one standard deviation either side of the mean.
  • Titration to pH 8.2 with sodium hydroxide, reported as malic acid equivalents. Mean of replicates; a bracket, where shown, is one standard deviation either side of the mean.
  • Meter on pressed juice before fermentation. Mean of replicates; a bracket, where shown, is one standard deviation either side of the mean.
  • Löwenthal permanganate titration, reported by the source as grams per litre of tannic acid equivalent and stored here as milligrams per litre by exact conversion so that it sits in one column with the Folin–Ciocalteu figures the site also holds. The two methods do not measure the same thing and are not interchangeable.
  • Enzymatic assay (Megazyme). Mean of replicates; a bracket, where shown, is one standard deviation either side of the mean.
  • D-sorbitol/xylitol assay kit (Megazyme), sorbitol dehydrogenase method. Mean of replicates; a bracket, where shown, is one standard deviation either side of the mean.
  • Titration with alkali, reported as malic acid. Composite figure across many seasons; the source states neither the sample count nor the year of any individual analysis.
  • Löwenthal permanganate titration, reported as tannic acid equivalent. Composite figure across many seasons; the source states neither the sample count nor the year of any individual analysis.
  • Mean fruit weight as published. The compiler notes that a typical New York dessert apple weighs about 140 g, so most of these are small fruit — which is normal for cider cultivars and is itself the point of the column.
  • Titration, reported as malic acid. Analysis of finished cider.
  • Meter on finished cider.
  • Method not stated by the source, which is a real limitation: different tannin methods give wildly different figures on the same sample.
  • One site, one climate. Acid in this cultivar falls appreciably in a warm season and in fruit left to ripen further before milling.
  • The range straddles the scheme’s 0.2% w/v tannin threshold, which is precisely why sources disagree about whether Kingston Black is a bittersharp or a sharp.
  • A chart position, not a quantity. Almost every accession here scored at or near 8, which says the fruit was picked at or past full starch conversion rather than that the cultivars are alike.
  • One harvest at one site. Soluble solids move several degrees between seasons and with crop load.
  • A permanganate figure and a Folin–Ciocalteu figure for the same juice can differ by a factor of two. Compare this reading with other permanganate readings, not with a Folin one.
  • A composite of Long Ashton analyses reaching CiderHQ through three hands: the station’s own work, a printed compilation (Bulmer’s Pomona, 1987, and Beech and Carr, 1977), and a transcription of that compilation. CiderHQ has seen only the transcription.
  • A composite of Long Ashton analyses reaching CiderHQ through three hands: the station’s own work, a printed compilation (Bulmer’s Pomona, 1987, and Beech and Carr, 1977), and a transcription of that compilation. CiderHQ has seen only the transcription. A permanganate figure. It is not comparable with a Folin–Ciocalteu total-phenolics figure for the same fruit, and the two can differ by a factor of two.
  • Reaches CiderHQ through a transcription of a 1989 food-technology chapter, which itself printed unpublished 1980 work from the station. Unlike the chemistry in this dataset it is a measurement of the fruit rather than of the finished cider, so it is comparable with other fruit weights.
  • Measured on finished cider after a spontaneous fermentation, not on juice. It is not comparable with a juice figure for the same cultivar, and the gap between the two is not a disagreement between laboratories — it is what fermentation did.
  • Measured on finished cider after a spontaneous fermentation, not on juice. It is not comparable with a juice figure for the same cultivar, and the gap between the two is not a disagreement between laboratories — it is what fermentation did. The compiler notes these tannin figures run at roughly half the Long Ashton juice figures for the same cultivars, and cannot say how much of that is fermentation, how much is Geneva, and how much is method.

Compare within a study to see where these figures sat among the other cultivars the same work analysed — which is a more robust statement than the figures themselves, because absolute values move between laboratories and the ordering inside one study mostly survives.

Watched in the orchard

What named research programmes recorded about this fruit at their own sites. Bloom, harvest and cropping belong to a place and a run of seasons rather than to a cultivar, so they are reported site by site rather than merged.

WSU Mount Vernon cider cultivar trial

Northwestern Washington Research and Extension Center, Mount Vernon, Skagit Valley, Washington · 2002–2017 · Washington State University Northwestern Washington Research and Extension Center

Maritime, with cool summers and mild wet winters — the closest North American analogue to the English West Country, and the reason the programme planted European cider fruit here rather than east of the Cascades.

Mean full bloom
12 May
Harvest
30 September
Bloom density
3.3 of 5
Productivity
2.7 of 5
Growth habit
Spreading
Bearing
Standard
Alternate bearing
Yes
Blind wood
2 of 5
Rootstocks
MM.106

Filed here as sharp.

Tasted at this site

Color gold to amber, mildly bitter. Stand-alone varietal cider, tannins are soft, good balance, wonderful apple flavor. Citrus, apple, butterscotch.

Recorded by the programme from professional cidermakers in the region. One panel, one place, one set of seasons — a description of these ciders rather than of the cultivar everywhere.

Juice characteristics measured on 250 mL of pressed juice; juice yield from 25 fruit, 2015–2017 only. Bloom density, productivity and blind wood are the site’s own subjective 1–5 ratings. Figures are means across the seasons each cultivar was in the trial.

USDA-PGRU Malus germplasm characterisation

USDA-ARS Plant Genetic Resources Unit, Geneva, New York, in the Finger Lakes region of western New York State · 2017 · Cornell University / USDA-ARS Plant Genetic Resources Unit

Humid continental, with cold winters and warm summers moderated by the Finger Lakes — a sharper seasonal swing than any of the European cider regions whose fruit the collection holds, and warm enough in late summer to bring acid down faster than a maritime autumn does.

Held as
PI 589703, held as “Kingston Black”

One harvest season. Fruit assessed for weight, diameter, starch pattern index on the Cornell 1–8 chart and flesh firmness by penetrometer; juice pressed and measured for soluble solids by refractometer, titratable acidity by titration to pH 8.2 as malic acid, pH by meter, total phenolics by Löwenthal permanganate titration as tannic acid equivalent, and glucose, fructose, sucrose and sorbitol by enzymatic assay.

Long Ashton composite cider apple analyses

Long Ashton Research Station, near Bristol, North Somerset, England · 1905–1975 · Andrew Lea

Maritime and mild, with wet autumns and few hard frosts — the climate the English cider cultivars were selected in, and the reason their acid and tannin figures here are the ones the rest of the world has spent a century comparing its own fruit against.

Held as
Listed as “Kingston Black”, late season

Filed here as bittersharp, though the juice measured at this site falls in the sharp quadrant of the site’s own thresholds.

The class and the numbers disagree

The table lists this fruit as bittersharp and prints the two figures the 1903 scheme is defined on. Read against the scheme’s own cut-offs — 0.45% acid, 0.20% tannin — those figures fall in the sharp quadrant. Both are reproduced because the disagreement is the source’s, not CiderHQ’s. Neither reading is an error. A class assigned on acid and tannin describes fruit grown somewhere, and this is somewhere else.

Tasted at this site

Marked in the source as one of the cultivars “generally regarded as having that elusive and hard-to-define character of vintage quality”. The compiler marks fourteen of the forty-two that way, and does not say who regards them so or on what evidence.

Recorded by the programme from professional cidermakers in the region. One panel, one place, one set of seasons — a description of these ciders rather than of the cultivar everywhere.

Freshly expressed juice, not finished cider. Acid by straight titration against alkali, reported as malic acid; tannin by Löwenthal permanganate titration, reported as tannic acid equivalent. Composite figures across seventy years of analyses: the source gives neither a sample count nor the year of any individual reading.

NYSAES Geneva cider cultivar analyses

New York State Agricultural Experiment Station, Geneva, New York · late 1970s · AVI / Van Nostrand Reinhold, New York, 1989, edited by Donald L. Downing (ISBN 0-442-22117-7)

Humid continental, with a hotter summer and a colder winter than any European cider region. The compiler suggests the growing conditions may be part of why the phenolic figures sit so far below the English ones, and is careful not to claim it.

Held as
Listed as “Kingston Black”

Analysis of finished cider after a spontaneous fermentation. Acid by titration as malic; pH by meter; tannin by an unstated method; fruit weight as a mean. The data appear to come from a single season, and the original work was unpublished.

In the orchard

Harvest window
Mid
Flowering
Pollination group 4
Vigour
Moderate
Cropping
Severely biennial — a substantial crop only every other year
Keeping
Poor — mill soon after picking

Mid to late October. The fruit must be picked or gathered promptly; it does not hang or lie well and rots quickly on wet ground.

Among the most unreliable croppers of any cider apple. Heavy years alternate with near-total failures, and the tree is intolerant of poor drainage and thin soils, which compounds the problem.

Should be milled soon after gathering. Long storage costs both juice quality and volume.

Flowers in the later part of the season alongside the main Somerset bittersweets.

Disease and pest susceptibility

Recorded susceptibility. Pressure differs enormously by region and by season, so these are tendencies rather than predictions.
IssueSusceptibilityNote
ScabhighVery prone. Scab on Kingston Black is a routine problem rather than a bad-year one.
CankerhighCanker-prone, particularly on heavy or badly drained ground.
Powdery mildewmoderate

Juice and pressing

How it is used

On its own

Established as a single-varietal cider

The recognised English single-varietal apple. It carries enough acid to taste alive, enough tannin to have structure and enough aroma to be interesting, which almost no other English cultivar manages alone.

About Kingston Black

Kingston Black occupies a place in English cider that no analysis can quite justify. It is a small, dark-red apple with a modest tannin level that sits on the wrong side of a threshold as often as the right one, and its measured acid is high but not extraordinary. What makes it exceptional is that the acid, the tannin and a genuine fruit aroma arrive together in one juice, in proportions that need no correcting. Most cider fruit is a component; this is close to a finished thing.

The tree is the problem. It crops severely biennially, takes scab and canker readily, dislikes heavy ground, and gives fruit that must be milled promptly because it neither hangs nor stores. A grower planting an acre of Kingston Black is accepting that some years will produce almost nothing. This is the whole reason the cultivar’s reputation is larger than its acreage: the cider gets talked about and the orchard does not repay the trouble unless the fruit commands a premium, which for a named single varietal it usually does.

The classification is worth being careful about. Kingston Black is described as a bittersharp so consistently that the qualification has been lost, but its tannin range straddles the Long Ashton cut-off. In a season that gives lower tannin the same fruit is analytically a sharp, and the difference is audible in the glass — a lean, bright cider rather than a structured one. This record carries both placements deliberately, because presenting one of them as settled would be inventing certainty the numbers do not have.

The older Somerset name Black Taunton locates the fruit around Taunton Deane and is good evidence for the district, though it says nothing about a founding tree. What is documented is the twentieth-century afterlife: Long Ashton studied it, competition classes were built around it, and by the late twentieth century "Kingston Black" had become the standard way of saying that a cider was meant to be taken seriously. That framing has done the cultivar no harm and has occasionally flattered ciders made from it in poor seasons.

Names, origin and identity

Cultivar naming is the hardest problem in cider fruit data. The same tree carries different names across ten miles, and two different trees have shared a name for two centuries.

Origin · traditional account

Associated with the parish of Kingston St Mary and known under the older name Black Taunton, which supports the district but not a founding tree or date. The usual account of a single discovered seedling is tradition rather than record.

Parentage · not established

No parentage recorded.

Other names this fruit is known by. Each is a name for the same cultivar, not a separate one — which is why none of them has a page of its own.
NameKindNote
Black TauntonRegional nameSomerset. An older Somerset name for the same fruit, still occasionally met in old orchard records.
Kingston BitterDisputed identityA different cultivar entirely, despite the similar name. The two are regularly conflated in listings.

Why it matters

Related cultivars

Recorded relationships, including the ones this fruit is routinely confused with.

Fruit that plays a similar part

Cultivars sharing a classification under the same system and a comparable role in a blend. Not a similarity score — a stated relationship.

Styles it is characteristic of

Where it grows

What people ask next

Questions readers ask about the things this page mentions. Each one goes to the section that answers it rather than to a page written to receive the question.

Where to go next

Sources

What this page rests on. Where a source is marked as registered rather than read, CiderHQ is recording that the body is authoritative on the subject without claiming to have worked through the document itself. See our evidence policy for what each state means.

Traditional record Evidence standard for this record. What that means.