Perry pear
Knapper
A hard, tannic border perry pear whose name probably records either stone-knapping or the hardness of the fruit.
Also written Knapper Pear, Napper.
- Classification
- Bittersweet — Perry pear classification
- Harvest
- Late (Late October)
- Single varietal
- Not suited to a single-varietal cider
- Blend role
- Tannin and structure, Late season
- Origin
- The Herefordshire and Monmouthshire border
- Species
- Pyrus communis
- Flowering
- Early flowering band
- Vigour
- Vigorous
- Biennial bearing
- Markedly biennial — heavy and light years alternate
- Keeping
- Moderate
How it is classified
Perry pear classification
Bittersweet
Low acid with substantial tannin — the class that gives perry grip.
Low acid with substantial tannin. Placed from descriptive material only.
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.
| Axis | Typical | Range |
|---|---|---|
| Acid | Low | |
| Tannin | Firm | |
| Sugar | Moderate | |
| Bitterness | Moderate | |
| Astringency | Drying | |
| Aroma | Restrained | |
| Body | Medium |
Descriptive material on a hard, tannic, low-acid pear.
Very hard fruit giving a drying, low-acid juice with little aroma and a firm finish.
Aroma
No aroma descriptors are recorded for Knapper, 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.
Measured analysis
CiderHQ holds no sourced juice analysis for Knapper. Figures for this cultivar circulate, but they reach the present through compilation rather than through the original tables, and publishing a number we cannot attribute would give it an authority it has not earned. What is known about how the fruit behaves is described above and below.
In the orchard
- Harvest window
- Late
- Flowering
- Early flowering band
- Vigour
- Vigorous
- Cropping
- Markedly biennial — heavy and light years alternate
- Keeping
- Moderate
October. Hard fruit that resists both the weather and the mill. The National Perry Pear Collection records it ripening in late August or early September at Hartpury, one band earlier than the late window recorded here.
Hard flesh gives a slightly longer working window than most perry pears.
Mid to late. Self-incompatible. The National Perry Pear Collection places it in the early flowering band, from flowering records kept over many seasons.
Pears are not self-fertile. A variety needs another in blossom at the same time to set fruit, which is why the flowering band matters more in a perry orchard than the harvest window does.
Ripening moves with the site and the season. Where the National Perry Pear Collection’s observation at Hartpury falls in a different band from the window recorded here, both are kept rather than one overwriting the other.
Disease and pest susceptibility
| Issue | Susceptibility | Note |
|---|---|---|
| Pear scab | low | — |
Juice and pressing
- Substantial tannin, low acid
- Low juice yield from hard flesh
How it is used
- Blended for tannin on the Welsh border.
On its own
Not suited to a single-varietal cider
No tradition of separate use, and the juice has too little acid and aroma to carry a perry on its own.
About Knapper
Knapper is a hard border pear with a name that could mean two things. To knap is to strike or break stone, so the name may record the trade of whoever grew the tree, or it may simply describe a fruit hard enough that breaking it invited the comparison. Both readings circulate; neither is documented.
The fruit is genuinely hard, which has practical consequences. It resists breakdown for longer than a soft-fleshed pear, giving a mill a slightly wider window, and it resists the mill as well: hard perry pears need thorough grinding to give up their juice, and yields are lower than from soft fruit. The juice itself is low in acid and substantially tannic, so its use is structural.
Very few trees survive. Knapper is one of a number of border perry pears that exist now because collections hold them, and this record’s thin factual content is a fair reflection of what is known rather than an omission.
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
Unrecorded. Knap means to strike or break stone, and the name may be occupational or may simply describe a fruit hard enough to be worth the comparison.
| Name | Kind | Note |
|---|---|---|
| Knap Pear | Regional name | Recorded as a synonym of Knapper by the National Perry Pear Collection. |
The National Perry Pear Collection’s identifications are supported by DNA analysis of the trees it holds, which is why they are treated here as the stronger account where they conflict with a documentary one. Where the collection records a name for two varieties it holds as distinct, the name identifies a group of trees rather than one variety, and fruit offered under it needs checking against something other than its label.
Why it matters
- Known from few trees; one of the border cultivars kept in existence by collection rather than by cultivation.
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.
Antricotin
A tannic Domfrontais poiré pear used to give structure to blends led by the region’s softer aromatic fruit.
De Fer
A hard, tannic Domfrontais poiré pear whose name — iron — describes the fruit exactly.
Gin
A small Herefordshire perry pear named, like Brandy and Sack, for the strength of the drink it makes rather than for anything about the fruit.
Red Pear
A tannic Herefordshire perry pear whose generic name has been applied to red-fruited pears generally, making orchard records that use it almost impossible to interpret.
Coppy
A tannic perry pear of the Welsh border country, known from few trees and giving a juice with unusual grip for its class.
Red Longdon
One of four perry pears carrying the name of the Worcestershire parish of Longdon, distinguished by its red-flushed fruit and a juice with more tannin than acid.
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.
- What is perry — Perry is an alcoholic drink made by fermenting the juice of pears, traditionally of specific perry pear cultivars rather than eating pears. It is to pears what cider is to apples, and has its own history in the three counties of England and in Normandy.
- How are apples milled for cider
- What is pressing yield — Pressing yield is the proportion of fruit weight recovered as juice. It varies from under half on a poorly loaded basket press to around seventy per cent on a well-run rack-and-cloth or belt press.
- What is juice blending
- How are perry pears classified — Perry pears are conventionally divided by acid and tannin into sweet, medium sharp, bittersharp and bittersweet, following the scheme used in the English perry literature. Sorbitol content matters too, and it does not appear in the classes.
- Is there a perry pear that can be stored — Rock is the clearest exception. Its flesh is hard enough that the fruit holds for several weeks in cool conditions instead of the days most perry pears allow, which lets a mill schedule it rather than react to it.
Where to go next
- How cider apples are classified — Why there are four schemes and none of them is universal.
- The blend explorer — See which way changing the proportions moves a blend.
- Blending — What a cider maker is actually deciding when they build a blend.
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.
National Perry Pear Centre, Hartpury · specialist organisation · passage verified 2026-08-24
Read on 2026-08-24 — and the address CiderHQ had registered, perrypears.co.uk, is no longer the Centre at all. It fails the TLS handshake over https, and over plain http it resolves to a Sedo domain-parking page: an earlier pass in this sprint recorded it as retrieved on the strength of an HTTP 200, which was wrong, and the correction is the point. The Centre publishes at nationalperrypearcentre.org.uk. It is the closest thing British perry has to an identity authority: it holds at least two examples of most known varieties, states that the DNA of most of them has been determined and is used as an aid to identification, and publishes a variety register with synonym lists. Its 121-variety register is transcribed into the perry pear records, including the nineteen names it shows being claimed by more than one variety.
Marcher Apple Network · specialist organisation · retrieved 2026-08-24
Has rediscovered and DNA-fingerprinted a number of lost Welsh border cultivars. Cited for identity work on cultivars the national collections do not hold.
Traditional record Evidence standard for this record. What that means.