Aromatic Spikes & Eugenol Science

Clove

Cloves—the dried flower buds of the Syzygium aromaticum tree—are among the most potent spices in the world. Known as Mismar (nails) in the Gulf for their distinctive shape, they carry the highest concentration of aromatic oils in the plant kingdom. Central to Saudi coffee and traditional spice blends, cloves are prized for their warming flavor and scientifically proven antiseptic properties.

Clove
70–90%Eugenol in oil
8 min read Updated 2026-05-28 Reviewed SFDA
MH
Dr. Mona Al-Harbi
SFDA-licensed Clinical Dietitian — medically reviewed this content.
SFDA Licensed12 years experience
Medical Disclaimer: The following content is a general educational reference based on peer-reviewed studies and classical medical heritage. It does not substitute professional medical advice. If you have a health condition, take chronic medications, or are pregnant or breastfeeding, consult your doctor before following any dietary recommendation.

Ingredient Profile

Scientific name
Syzygium aromaticum, family Myrtaceae
Active compound
Eugenol (antiseptic & anesthetic)
Origin
Maluku Islands (Spice Islands), Indonesia
Top producer
Indonesia, Madagascar, Tanzania (Zanzibar)
Saudi culinary use
Saudi coffee, Kabsa spices, meat marinades
Key nutrient
Manganese (exceptionally high density)
Safe daily dose
1–2 whole cloves or a tiny pinch ground

What Are Cloves?

Cloves are the immature, unopened flower buds of an evergreen tree native to the Spice Islands of Indonesia. They are harvested by hand and dried until they turn a deep reddish-brown and harden into their nail-like shape. In Saudi and Gulf culture, they are an essential aromatic, providing the "depth" in spice blends like Bzar and the signature scent of authentic Saudi coffee.

The flavor is intensely warm, sweet, and slightly astringent, leaving a characteristic numbing sensation on the tongue. This numbing effect is due to Eugenol, the primary chemical component that gives cloves both their flavor and their medicinal value as a traditional anesthetic.

The Science of Eugenol & Health

Oral Health
Natural Anesthetic

Eugenol is widely used in modern dentistry as an antiseptic and pain reliever. Placing a whole clove near a painful tooth provides temporary relief due to its local anesthetic properties.

Antioxidant Peak
High ORAC Value

Cloves rank among the highest spices in antioxidant capacity. They contain high amounts of polyphenols that help neutralize free radicals and reduce oxidative stress within the body.

Bone Health
Manganese Rich

Just one teaspoon of ground cloves provides over 50% of the daily value for Manganese, an essential mineral for bone formation, blood clotting, and metabolic health.

Digestive Support
Traditional Aid

Traditionally used to treat stomach upsets and bloating. Modern research suggests it may help protect the stomach lining by increasing the production of protective gastric mucus.

The Quality Test

To check if cloves are fresh, drop one into a glass of water. A high-quality clove will either sink or float vertically with the head pointing up. If it floats horizontally, it has lost its essential oils and will have very little flavor or health benefit.

Kitchen Uses in Saudi & Gulf Cooking

Saudi Coffee2 cloves
Added to the Dallah alongside cardamom. Use only 1-2 whole cloves for a full pot to avoid overwhelming the delicate blonde roast.
Rice Aromatics3 cloves
Whole cloves boiled with Basmati rice for Kabsa or Mandi. They add a woody, floral note that balances the richness of the meat.
Bzar BlendPinch
Ground into the traditional nine-spice Saudi blend. Cloves act as a flavor anchor, bridging the gap between sweet cinnamon and spicy pepper.
Warm Sweets¼ tsp
Ground cloves in traditional winter sweets or spiced tea (Karak). It provides a comforting heat that pairs perfectly with ginger and milk.

Frequently Asked Questions

Is it safe during pregnancy?
The small amounts found in Saudi coffee or rice dishes are perfectly safe. However, concentrated clove oil or supplements should be avoided during pregnancy as they may affect blood clotting.
Can I use clove oil for a toothache?
Yes, but apply it sparingly with a cotton swab. Pure clove oil can irritate the gums if used in excess. Remember that this only numbs the pain and does not treat the underlying cavity.
Why does my dish taste bitter after adding cloves?
Cloves are extremely potent. If you add more than 3-4 whole cloves to a single dish, or too much ground powder, the bitterness of the eugenol will dominate. Always start with less than you think you need.