Allspice is the dried fruit of the P. dioica plant. The fruits are picked when green and unripe and are traditionally dried in the sun. When dry, they are brown and resemble large brown smooth peppercorns. The whole fruits have a longer shelf life than the powdered product and produce a more aromatic product when freshly ground before use.
Fresh leaves are used where available. They are similar in texture to bay leaves and are thus infused during cooking and then removed before serving. Unlike bay leaves, they lose much flavor when dried and stored, so do not figure in commerce. The leaves and wood are often used for smoking meats where allspice is a local crop. Allspice can also be found in essential oil form.
Allspice is one of the most important ingredients of Caribbean cuisine. It is used in Caribbean jerk seasoning (the wood is used to smoke jerk in Jamaica, although the spice is a good substitute), in moles, and in pickling; it is also an ingredient in commercial sausage preparations and curry powders. Allspice is also indispensable in Middle Eastern cuisine, particularly in the Levant, where it is used to flavour a variety of stews and meat dishes. In Palestinian cuisine, for example, many main dishes call for allspice as the sole spice added for flavouring. In the U.S., it is used mostly in desserts, but it is also responsible for giving Cincinnati-style chili its distinctive aroma and flavour. Allspice is commonly used in Great Britain, and appears in many dishes, including cakes. Even in many countries where allspice is not very popular in the household, as in Germany, it is used in large amounts by commercial sausage makers. It is a main flavour used in barbecue sauces. In the West Indies, an allspice liqueur called "pimento dram" is produced.
Allspice has also been used as a deodorant. Volatile oils found in the plant contain eugenol, a weak antimicrobial agent.