Comparison
English vs Spanish classification
How are Spanish cider apples classified?
In short
The Asturian classification, established by SERIDA and used by the Sidra de Asturias designation, sorts fruit into dulce, ácida, semiácida, amarga and amarga-ácida. It shares the acid-and-phenolic logic of the English scheme but not its cut points.
The class that has no English counterpart is semiácida, an intermediate acidity group — and it is the largest among the permitted Asturian varieties. Asturian fruit is characteristically acidic, so a scheme with a single "sharp" bucket would put most of the region’s fruit in one box and say very little.
The English scheme has a bittersweet class that dominates its own tradition. The Asturian scheme has a middle-acid class that dominates its own. Each is well fitted to the fruit it was built for, which is exactly why neither transfers cleanly.
The two things being compared
Each side described in its own terms first, so the table below has something to hang on.
Long Ashton classification
Four classes on two thresholds — sweet, sharp, bittersweet, bittersharp — built around a tradition whose defining fruit is the low-acid, high-tannin bittersweet.
Asturian classification
Five classes — sweet, sharp, semi-sharp, bitter and bittersharp — built around a tradition whose fruit is characteristically acidic, with a large intermediate group.
Where they differ
Dimension by dimension. Where a row needs a qualification, it carries one rather than being simplified until it fits.
| Dimension | Long Ashton classification | Asturian classification |
|---|---|---|
| Number of classes | Four. | Five. |
| Resolution on the acid axisThe extra resolution is where most Asturian fruit actually sits. | One threshold, giving high and low. | Two, giving sharp, semi-sharp and sweet. |
| The dominant class in its own tradition | Bittersweet. | Semi-sharp. |
| Regulatory roleThat list is a regulatory instrument and changes; it is not a complete account of Asturian fruit. | No legal standing; a research and description convention. | Tied to a permitted-variety list under a protected designation. |
| What the fruit is for | Blends fermented dry, often bottle-conditioned or carbonated. | Sidra natural, poured from height to raise a brief mousse, drunk young and unfiltered. |
| Cross-mapping | "Sharp" absorbs both ácida and semiácida. | Amarga and amarga-ácida correspond roughly to bittersweet and bittersharp. |
Notes under a dimension name qualify the whole row, not one column.
When Long Ashton classification is the relevant one
The circumstances in which this is the thing being described, rather than a reason to prefer it.
- The fruit and the literature are English.
- You are reading tannin figures reported against the Long Ashton threshold.
When Asturian classification is the relevant one
The circumstances in which this is the thing being described, rather than a reason to prefer it.
- The fruit is Asturian, or the cider falls under the Sidra de Asturias designation.
- You need the acid resolution that a single sharp class throws away.
A misconception worth clearing up
This comparison exists partly because of the claim below, which is repeated often enough that most readers arrive holding it.
Spanish cider apples are just sharps by another name.
What is actually the case: The Asturian scheme distinguishes sharp from semi-sharp precisely because most of its fruit clusters in a band that English classification cannot resolve. Collapsing that into "sharp" discards the distinction the region’s blending actually turns on.
Related comparisons
Distinctions that turn on the same thing, or that this one is routinely confused with.
Long Ashton vs Asturian thresholds
Two schemes measuring the same two things on fruit from different climates, with cut points chosen for local populations — which is why a single cultivar can classify differently under each without either being wrong.
English vs French classification
Both schemes sort cider fruit on acid and tannin, but the English one cuts it into four classes and the French into five, with a distinctly tannic *amère* family the English scheme has no name for.
English vs Spanish cider traditions
Two complete traditions with different premises: the English builds structure from tannic fruit and manages sweetness and carbonation; the Asturian and Basque build acidity and wild-ferment character and animate the drink at the moment of pouring.
Asturian vs Basque cider
Two neighbouring Spanish traditions that share wild fermentation, dryness and the pour, but differ in cultivar, in acidity, and in how the cider is served and drunk.
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.
- Why is spanish cider so different from english cider — Asturian and Basque cider is fermented dry, is usually not carbonated, and is poured from a height to aerate it in the glass. English cider is more often sweetened, more often carbonated and rarely poured that way, and the two traditions use different fruit and different classification systems.
- How does the french classification of cider apples differ from the english one — The English scheme cuts fruit four ways on acid and tannin; the French scheme cuts it five ways and separates amère from douce-amère, a distinction English has no word for. The French thresholds are also stated in grams per litre with acidity as sulphuric acid, so the numbers do not compare directly.
- What is the difference between asturian sidra and basque sagardoa
- Why does the same apple get classified differently in england and spain
Where to go next
- All comparisons — The rest of the pairs, grouped by what kind of difference is at stake.
- Glossary — Either term on its own, defined without a second thing to hold it against.
- Learn about cider — The background these pages assume, written from the beginning.
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.
Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA)
Principado de Asturias · research institute · retrieved 2026-08-24
The Asturian regional agri-food research service, and the technical authority behind the Asturian cultivar classification and the analysis of sidra natural. SERIDA’s own site has not been opened; what CiderHQ has read is SERIDA’s varietal characterisation as republished by the Consejo Regulador of DOP Sidra de Asturias, which credits it explicitly. The Asturian measurements therefore cite the Consejo rather than SERIDA — citing the body that did the work, at a document CiderHQ has not seen, would be exactly the kind of borrowed authority this register exists to prevent.
Denominación de Origen Protegida Sidra de Asturias
Consejo Regulador de la DOP Sidra de Asturias · designation authority · passage verified 2026-08-24
The regulating council for Asturian cider. Read on 2026-08-24, and it turned out to carry far more than a permitted-variety list: an agronomic and technological characterisation of each admitted variety, with total acidity, total polyphenols, vigour, flowering, ripening, cropping and susceptibility to fungal disease. The characterisation is credited to SERIDA’s fruit-research programme. Two things it settles are corrections to what CiderHQ previously held: Asturias sorts cider fruit into nine technological blocks rather than five, and it publishes acidity as sulphuric acid rather than malic. The figures are transcribed into `data/trials/serida-asturias.ts` and cite this source, because this is where they were read.
Long Ashton Research Station cider fruit analyses
National Fruit and Cider Institute / University of Bristol · research institute · registered as competent for this subject · covers 1903–2003
The foundational body of cider-fruit science in English. Long Ashton produced the acid-and-tannin classification that divides cider apples into sweet, sharp, bittersweet and bittersharp, and analysed hundreds of cultivars grown at its Somerset site. Its figures are historic measurements of specific fruit at a specific place, not universal constants — a distinction CiderHQ preserves in every measurement record that cites it.