Juniper berry
A fleshy cone used as spice and to flavour gin.
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Juniper berries are actually the female seed cones of juniper plants, not true berries. Their scales are fleshy and fused together into a structure called a galbulus, which looks berry-like. A few species, most notably Juniperus communis, provide cones used as a spice, especially in European cooking, and they are what gives gin its characteristic taste. Along with spruce buds, juniper berries are one of the few conifer-derived spices.
Unlike a typical pine cone’s separate, woody scales, a juniper berry’s scales stay soft and merge into a single covering around the seeds. They are sometimes compared to arils, like the berry-like cones of yews. J. communis berries range from 4 to 12 millimeters across; other species are similar in size, though J. drupacea can be larger, at 20–28 millimeters.
Young berries are green and, in most species including J. communis, turn purple-black after about 18 months. Maturation time varies from 8–10 months in some species to over 24 months in J. drupacea. Cooks usually use the mature, dark berries, while gin is flavored with fully grown, ripe berries.
Chemistry
Chemically, juniper berries contain various phytochemicals. Their essential oil makes up about 2% of volume, along with a flavonoid called juniperin, and resins (roughly 10%). Extracts have yielded fatty acids, terpenes, aromatic compounds, and hydrocarbons such as pinene, sabinene, terpinen-4-ol, limonene, and myrcene.
Toxicity
In the United States, juniper berries are classified as generally recognized as safe, but they may cause side effects not thoroughly studied in clinical trials. Even small doses might increase the risk of miscarriage, so pregnant or breastfeeding women should be cautious. Allergic reactions are possible, and large amounts can lead to catharsis, convulsions, or kidney damage. Some species, like J. sabina, are toxic.
Uses
Some juniper species are too bitter to eat. Besides J. communis and J. drupacea, edible species include J. phoenicea, J. deppeana, and J. californica. Young green berries taste mainly of pinene; as they ripen, that piney, resinous flavor gains what Harold McGee describes as “green-fresh” and citrus notes. The outer scales are nearly flavorless, so the berries are almost always lightly crushed before use.
Quick Facts
- Type
- Seed cone (galbulus)
- Primary species used
- Juniperus communis
- Size range
- 4–12 mm (J. communis); up to 20–28 mm (J. drupacea)
- Maturation time
- 8–10 months to over 24 months
- Color when mature
- Purple-black
- Key chemicals
- Essential oil
- juniperin
- resins
- pinene
- sabinene
- limonene
Facts from the source article.
Lore & Background
Unlike the separated and woody scales of a typical pine cone, those in a juniper berry remain fleshy and merge into a unified covering surrounding the seeds. Juniperus communis berries vary from 4 mm to 12 mm in diameter; other species are mostly similar in size, though some are larger, notably J. drupacea (20–28 mm). The berries are green when young and mature to purple-black over about 18 months in most species. Maturation occurs from as little as 8–10 months in some species up to over 24 months in J. drupacea.
The mature, dark berries are usually used in cuisine, while gin is flavoured with fully grown, ripe berries. Juniper berries contain diverse phytochemicals, including essential oils, juniperin, and resins. While juniper remains have been found in some ancient Egyptian contexts, there is no widely established evidence of their presence in the tomb of Tutankhamun.
Reader's Guide
Juniper berries hold significance as one of the few spices derived from conifers. Their primary culinary role is in northern European and Nordic cuisine, where they impart a sharp, clear flavor to meat dishes, especially wild birds and game meats, as well as pork, cabbage, and sauerkraut. Traditional recipes for choucroute garnie universally include juniper berries. They are also used in German, Austrian, Czech, Polish, Hungarian, and northern Italian cuisine.
Juniper, typically J. communis, is used to flavor gin, a liquor developed in the 17th century in the Netherlands. The name gin itself is derived from either the French genièvre or the Dutch jenever, both meaning 'juniper'. Other juniper-flavoured beverages include Finnish sahti and Swedish julmust.
A few North American juniper species produce a sweeter, less resinous cone used as nutritive food by some Native Americans, who also used the seeds as beads. The berries have been found in ancient Egyptian tombs, and the Greeks used them in Olympics events believing they increased physical stamina. The Romans used juniper berries as a cheap substitute for black pepper and as an adulterant. An essential oil extracted from juniper berries is used in aromatherapy and perfumery.
Frequently Asked Questions
Who is Juniper berry?
Juniper berry is the fleshy seed cone—technically a structure called a galbulus—produced by juniper plants, with Juniperus communis being the most commonly used species. Despite the name, it is not a true berry; it is a cluster of soft, fused scales that wrap around the seeds in a berry-like shape.
What is Juniper berry's role in the kitchen?
Its main job is to deliver a sharp, resinous, piney note in European savory dishes and to provide the signature flavor of gin. Compounds such as pinene, sabinene, limonene, and juniperin in its essential oil and resins are what create that distinctive aromatic profile.
What does Juniper berry look like?
The fused, fleshy scales form a small rounded body typically 4–12 mm across in J. communis, though species like J. drupacea can push the size to 20–28 mm. When fully mature the covering turns a dark purple-black, giving it an almost grape-like appearance that easily fools the untrained eye.
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Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: Juniper berry (CC BY-SA 4.0).
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