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Cloves

Intensely aromatic spice made from dried flower buds.

Wiki about clove Nutri-Score C Vegan Yes Gluten-free Yes Lactose-free Yes Nut-free Yes
NUTRITION / 100 g
274 kcal 6.0 g Protein 65.5 g Kohlenhydrate 13.0 g Fett

Introduction

Close-up of dried cloves (whole cloves)
I have a very specific memory of cloves that comes back whenever I smell the warm, slightly sharp scent: it was a winter market where someone was selling oranges studded with cloves, and the smell drew me in like a magnet. I still remember picking up one of the oranges, looking at the cloves and thinking that such a small nail can carry so much warmth.

Botanically, cloves are the dried flower buds of the clove tree (Syzygium aromaticum) from the Spice Islands. They have an intense aroma reminiscent of a mix of spicy heat and sweet depth. In many kitchens around the world they are considered a staple spice because they are at once strong and versatile.

In my kitchen I use cloves very deliberately, since too many of them can quickly dominate a dish. A colleague of mine swears by toasting whole cloves in a hot pan because that breaks the essential oil and makes the flavors milder but richer. I myself like to stick them into onions for braises, add them to mulled wine or to spice mixes like punch or five‑spice powder.

  • Whole cloves are ideal for cooking with and should be removed before serving.
  • Ground cloves distribute more quickly through a dish and are well suited for baked goods.
  • Use sparingly is my tip, because cloves can easily overpower everything.
  • Store correctly prolongs the aroma: keep airtight, dark and cool.
Outside the kitchen cloves are known for their essential oil eugenol, which has antiseptic properties and was even used for toothache in the past. I once used an improvised clove compress on a trip when a bout of toothache struck, and the oil actually provided a soothing effect.

To me cloves are little aromatic wonders: they tell stories of distant islands, they don't replace complexity but add depth to a dish. I invite you to experiment with a single clove and watch how much flavor can come from such a small spice.

Availability & types


Availability and types of cloves are easy to understand if you first know where they come from and in what forms they reach us. Cloves are actually the dried buds of an evergreen tree originally native to the Indonesian Spice Islands. Today these trees grow in several places around the equator, and therefore cloves are available year‑round in many supermarkets, spice shops and online.

Origin and growing regions
Cloves originally come from the so‑called Spice Islands (the Moluccas) in Indonesia. Because the climate there is warm and humid, clove trees thrive. Today the main producing countries are:

  • Indonesia – the largest growing area; many cloves sold on the world market come from here.
  • Madagascar – known for very aromatic cloves.
  • Tanzania (Zanzibar) – also has a long tradition of clove cultivation.
  • Sri Lanka, India, Philippines, Brazil – other countries where cloves are grown.
Cloves are mostly harvested by hand. The small buds are picked before they open and then dried in the sun or in drying facilities. Drying makes the clove durable, so it can be stored for months or even years if kept dry and protected from light.

Available varieties and formats
You can find cloves in various forms and qualities. Here are the main types, simply explained:

  • Whole cloves (usually the dried flower buds) – look like small nails with a head. They are very aromatic and stay fresh for a long time. You can cook with them whole or remove them before eating.
  • Ground cloves – are practical for quick seasoning, but lose their aroma faster than whole cloves. You can think of it like nuts: whole nuts last longer, ground ones go rancid sooner.
  • Clove oil – a potent oil obtained from cloves. It is used sparingly, for example in dentistry or for strong spice blends.
  • Clove leaves and stems – the leaves also contain aromatic compounds, but are less often used as a spice and more for oil or tea.
  • Organic and fair‑trade cloves – these come from certified cultivation with attention to the environment and fair pay for farmers.
Fine differences in taste often depend on the country of origin and the harvest: some cloves are more intense and slightly sweeter, others rather sharp and spicy. When buying cloves, you can check the origin, or start with a small pack to try.

Everyday availability
Cloves are available year‑round because they are shelf‑stable. Whole cloves can be found in any supermarket; ground cloves often in small tins. In markets in producing countries you can even find fresher variants. For particularly strong applications there is also clove oil available in pharmacies or specialized shops. Thus cloves are easily accessible and usable in many forms, whether you want to bake, cook or try something remedial.

Details & nutrition

Property Value
Unit g
Average weight per piece 0.2
Calories per 100 274
Protein per 100 6.0
Carbohydrates per 100 65.5
Sugar per 100 2.4
Fat per 100 13.0
Saturated fat per 100 3.9
Monounsaturated fat 1.3
Polyunsaturated fat 3.6
Fiber per 100 33.9
Vitamin C (mg) per 100 0.2
Vitamin D (IU) per 100 0
Calcium (mg) per 100 632
Iron (mg) per 100 11.8
Nutri-Score C
CO₂ footprint 2.8 kg CO2e/kg
Origin Tropical growing regions, often Indonesia or Madagascar
Gluten-free Yes
Lactose-free Yes
Nut-free Yes
Vegan Yes
Note Very aromatic; use sparingly. Often used whole or ground (e.g., in mulled wine, baked goods, curries).

Technical & scientific information


Cloves (Syzygium aromaticum) are the dried, unopened flower buds of an evergreen tree of the family Myrtaceae. Botanically and chemically they are characterized by a high content of essential oils and phenolic compounds, which are responsible for aroma, preservative and pharmacological properties. Cloves are used worldwide as a spice, in traditional medicine and in the perfume and cosmetics industry.

Main constituents
The characteristic composition of clove oil includes a mixture of mono‑ and sesquiterpenes as well as phenylpropanes. The following components are particularly relevant for effect and scent:

  • Eugenol: the dominant constituent; in many samples it makes up the largest proportion of the essential oil and is responsible for the typical pungent, balsamic aroma.
  • Eugenyl acetate and other esters: contribute to scent nuances and influence the solubility and tolerability of the oil.
  • β‑Caryophyllene and other sesquiterpenes: contribute to the depth of the aroma and possess additional bioactive properties.
  • Other constituents include tannins, flavonoids, astringent compounds, triglycerides and minerals in small amounts.
Nutritional value and micronutrients
Cloves are usually used in small amounts; as a spice they mainly provide fiber and secondary plant compounds. They contain traces of protein, fat and carbohydrates as well as minerals such as manganese and iron. The nutritional contribution is small at usual consumption levels, whereas the bioactive compounds can exert physiological effects at higher concentrations.

Processing methods
The usual processing steps are harvest, drying and, if applicable, further processing into oils or extracts. Important procedures are:

  • Harvest: the unopened buds are harvested before they flower to retain maximum aroma.
  • Drying: air or sun drying reduces moisture and stabilizes essential oils; gentle drying preserves more volatile components.
  • Steam distillation: the standard method for obtaining the essential oil; a large portion of the eugenol is extracted in this process.
  • Special extraction methods such as solvent extraction, CO2 extraction or enfleurage are used to obtain different profile fractions or to protect heat‑sensitive components.
  • Grinding and packaging: ground cloves lose volatile aromas faster; airtight, light‑protected packaging slows oxidation.
Scientific and health aspects
Experimental studies show that constituents such as eugenol possess antioxidant, antimicrobial and anti‑inflammatory properties. Mechanistic investigations suggest that eugenol can affect cell membranes and scavenge free radicals. Because of these effects, clove constituents are used in preservative formulations, in oral and dental care products and in traditional analgesics for toothache.

At the same time, risks must be considered at high doses or with improper use: eugenol can cause skin and mucous membrane irritation or sensitization, in rare cases have hepatotoxic effects and influence blood coagulation. Interactions with anticoagulants are possible. Therefore, for therapeutic use, higher doses or prolonged internal administration, medical advice is recommended.

Overall, cloves are a complex botanical product with pronounced aromatic and bioactive properties. Their use in cooking, pharmacy and cosmetics is based on well‑characterized chemical components, while gentle processing and proper dosing are decisive for effect and tolerability.

Wiki entry for: clove
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