Pimenta dioica
Allspice
Generally recognised as safeOther names: Allspice, Jamaica pepper
A Caribbean tree whose dried berries become the spice 'allspice'.
An evergreen tree with leathery leaves and small white flowers; the dried unripe berries combine notes of clove, cinnamon, and nutmeg — hence the common name allspice.
- Family
- Myrtaceae
- Plant type
- Evergreen tree
What the safety levels mean (expand legend)
- Generally recognised as safe. Often a common herb with reasonable harvest and use; still read the specific warnings on the card.
- Information. Primarily informational — details in the text and warnings below matter most.
- Caution. Needs extra care (dose, duration, sensitive groups, interactions).
- Risky. Significant risks — verify sources, contraindications and professional guidance.
- Not for home experimentation. Not suitable to experiment with at home without knowledge and certainty.
- High risk for internal use. Particular risk with internal use (e.g. alkaloids); avoid prolonged or irresponsible dosing.
- Not specified. Level not filled in yet — rely on individual warnings and links below.
Photograph on Wikimedia Commons (CC BY-SA 4.0).
Plant habit
Quick overview
A practical summary; details are in the sections below.
- Safety grade
- Generally recognised as safe details
- Scientific sources on the card
- Yes — sources are listed with claims Science section
- When and what to harvest
- Fruit — July–September
- Processing methods
Culinary use, Herbal liqueur, Herbal infusion (tea)
All methods and recipes on the card- Topics and symptoms
Bloating & gas, Digestion, Nausea & queasy stomach
Topics section, Symptoms overview
Identification and mix-ups
Evergreen tree in Myrtaceae usually 10–15 m (to 18 m) tall, with a stout trunk and a dense rounded crown. Leaves opposite, simple, entire, leathery, oblong-elliptic, to 20 cm, dark glossy green, dotted with oil glands, strongly aromatic when crushed (a blend of cinnamon, clove and nutmeg). Flowers small, whitish, in axillary clusters; fruit a brown berry about 6 mm with two seeds; the plant is dioecious.
Possible mix-ups and risks
Confused with bay rum tree (Pimenta racemosa), which differs in its generally shorter habit, flowers and fruit in racemes, black ovoid fruits, and a clove-cinnamon (bay rum) leaf aroma. Caution: P. racemosa leaf/berry oil is toxic if ingested at its cosmetic-oil concentration (used for cologne, not as food).
Similar herbs
- Black pepper
Allspice berries are larger, brown and smooth with a clove scent, black peppercorns smaller and wrinkled; the plants are unrelated. Only the name invites confusion.
Topics and symptoms
More topics are in the symptoms and topics overview.
- Bloating & gasTraditional· Traditional / cultural framing
- DigestionTraditional· Traditional / cultural framing
- Nausea & queasy stomachTraditional· Traditional / cultural framing
Sources
Geographic occurrence
Mexico
Occasional (garden, cultivation, or fringe of the range)
Harvest
- FruitJuly–September
summer
Region: MexicoNotes: Unripe green berries; sun-dried after harvest to a brown colour.
Storage
- Airtight storage(Fruit)
Whole dried berries keep 3–4 years in an airtight jar; ground allspice loses aroma within six months.
- Light:
- Out of light.
- Moisture:
- Protect from moisture.
Processing methods on this herb card
Cooking, baking, seasoning as food — general category without therapeutic claims.
Full method description (from the catalogue)
Culinary use covers herbs as ingredients in dishes, drinks, or spice mixes. This overview does not evaluate medicinal effects — only reminds you about species intent, allergies, and heat treatment where needed (e.g. some fruits or plant parts).
Combining with alcohol, sugar, or long cooking changes outcomes; verify culinary sources.
Traditional context for this method: yes·Scientific context for this method: no
Sweet alcoholic macerate with herbs; sugar and ethanol drive the outcome.
Full method description (from the catalogue)
A liqueur combines herbs, spirit, and sweetener into a strongly aromatic mixture. Home batches differ from commercial products in law and in how strength is controlled.
Follow the recipe for dosing and storage; maceration time changes colour and flavour.
Traditional context for this method: yes·Scientific context for this method: no
Infusion or brief extraction in hot water; usually without long boiling.
Full method description (from the catalogue)
Here, herbal tea is prepared as an infusion: pour freshly boiling water over dried herbs or a herbal blend and steep for at least 5 minutes. BfR gives this as a hygiene rule, not a medicinal dose. Follow the specific product instructions, including a longer steeping time when stated. This rule for herbal infusions is not a general preparation guide for true tea (Camellia sinensis). Temperature, steep time, and the herb-to-water ratio change both flavour and what dissolves into the liquid.
Compared with a decoction, heat exposure is shorter and gentler; tender leaves and flowers are often better as an infusion than with prolonged simmering. For each herb, always follow the plant card for suitable plant part, preparation, and safety notes — general rules never replace species-level judgement.
Traditional context for this method: yes·Scientific context for this method: no
Traditional / spiritual use
Kept separate from science — entries are cultural or symbolic, not medical advice.
The pepper that was not pepper
General
Historical mentionFolk useHerbal loreColumbus took the Jamaican berries for the pepper he was seeking and called them pimienta — the name pimenta stuck though the plant is unrelated to pepper. The Maya and Taíno preserved meat with the spice, and the Taíno originated the jerk technique of smoking and drying meat over pimento wood and leaves, taken up by Jamaica's Maroons. A record of history, not effect.
- Form:
- spice, meat preservation, Columbus's mistake
- Claim strength:
- Historical mention
- Source note:
- History of the spice trade and Caribbean cooking (jerk, the Jamaican Maroons); Zhang & Lokeshwar 2012 (introduction to the review).
Scientific notes
Each claim lists a study type and a source (URL or DOI) where available. Dose notes from the literature are informational only.
How to read evidence strength and study type labels
Labels summarise how the catalogue entry is tagged — they are not a medical verdict on efficacy. For every row, read the summary, limitations and source link.
Evidence strength
- Evidence level not specified
- The author did not grade the record; judge from the summary, limitations and source link.
- Narrative / orientational literature
- Descriptive or expert literature without controlled group comparison — context rather than proof of effect.
- Weak evidence
- Study or conclusion with major methodological limits; treat only as a pointer for further reading.
- Preliminary findings
- First or smaller studies — interesting direction, not the final word on efficacy or safety.
- Moderate strength of evidence
- Moderate strength by study design; sample and context limits still apply.
- Stronger evidence
- Stronger design or consistency of results within the study's stated limits.
- Review article
- A review summarises multiple sources; quality depends on review method and field.
Study type
- Narrative / expert text
- Expert text or overview without a classical study design.
- In vitro study
- Cell culture or test-tube experiment — does not show an effect in the body.
- Animal study
- Animal model — transfer to humans is not automatic.
- Observational study
- Observing groups without random treatment assignment; confounding is possible.
- Clinical trial
- Human clinical trial; sample size and control group matter.
- Randomised controlled trial
- Randomised controlled trials are among the stronger designs when well conducted.
- Review study
- A review aggregates multiple papers — quality depends on selection rules.
- Systematic review
- Systematic review with explicit search and selection methodology.
- Meta-analysis
- Statistical pooling of studies; outcome depends on input data and heterogeneity.
- Regulatory assessment / monograph (EMA, WHO…)
- Regulatory body summary for a herbal product — different context from a single RCT; often about products, not home tea.
- Expert monograph (herbal preparations)
- Structured literature summary for a plant or drug — quality depends on author and edition year.
The review summarises the composition of allspice (eugenol, quercetin, gallic acid, ericifolin) and laboratory studies of antioxidant, antimicrobial and antitumour activity of extracts in cell culture and animals; traditional Caribbean uses include digestive complaints and pain.
Narrative / orientational literatureReview studyYear: 2012Limitations: Preclinical data only; no human clinical studies.
Zhang L, Lokeshwar BL — Current Drug Targets
Medicinal Properties of the Jamaican Pepper Plant Pimenta dioica and Allspice
Images
The main photo is in the card header. More images will appear here when available.
Safety
What the warning types mean
The type on each warning helps group themes — it does not replace the separate severity badge.
- Internal use
- Risks from swallowing, extracts, duration of use or concentration for internal use.
- Interactions / medicines
- Possible effect on medicines or concurrent treatment — check sources and a professional.
- Raw plant parts
- Raw, unripe or poorly prepared plant parts can be dangerous.
- Toxins and regulation
- Toxic constituents or regulated compounds (e.g. in distillates).
- Contact with the plant
- Skin or mucosa irritation from contact with fresh plant or sap.
- Allergy
- Allergic reactions, often linked to family sensitisation.
- Harvesting and contamination
- Contamination, species mix-ups or harvesting from unsuitable places.
No structured safety records yet.