Spices have served far more purposes than flavoring food. Across thousands of years and dozens of civilizations, they were used for preserving bodies and meat, treating illness, repelling insects, perfuming skin, honoring gods, and displaying wealth. Some of these uses have held up remarkably well under modern scientific scrutiny, while others belong firmly to their time.
Preserving Food Before Refrigeration
Long before anyone understood bacteria, people noticed that spiced food lasted longer. The reason is straightforward: many spices contain compounds that kill or slow the growth of microorganisms. Cloves are rich in eugenol, a compound that breaks down bacterial cell walls and stops bacteria from producing the enzymes they need to multiply. Cinnamon’s key compound, cinnamaldehyde, disrupts bacterial cell membranes and interferes with essential enzyme activity. These aren’t minor effects. Both compounds show broad activity against foodborne pathogens in laboratory studies.
This made spices genuinely useful in warm climates where meat and other perishables spoiled quickly. It’s no coincidence that the world’s most heavily spiced cuisines developed in tropical regions. Salt remained the primary preservation method, but spices provided an additional layer of protection while also making preserved food more palatable.
The Myth About Masking Rotten Meat
One of the most persistent historical claims is that medieval Europeans piled spices onto spoiled meat to cover the taste. This almost certainly didn’t happen as a regular practice. Spices in medieval and Tudor England were extraordinarily expensive, often worth more by weight than the meat itself. The idea that people would pour a fortune’s worth of cinnamon and cloves onto cheap meat they’d failed to store properly doesn’t hold up. With the money spent on those spices, you could simply buy fresh meat.
There are a handful of period recipes that address tainted meat, and none of them call for spices. The standard advice was to cut away the bad parts and wash what remained. Spices were used lavishly in wealthy kitchens, but as a mark of status and sophistication, not as a cover-up. One of the most common medieval sauces, cameline, combined cinnamon, ginger, cloves, and saffron. It appeared on tables that could afford fresh ingredients precisely because it was a luxury.
Embalming and Mummification
Ancient Egyptians packed their dead with spices and aromatic resins to prevent decay and mask the smell of decomposition. Body cavities were filled with crushed myrrh, cinnamon, cassia, and frankincense, then sealed with molten resin poured over the skin and into the skull. Cedar, juniper, and pine oils served both a practical and ritual purpose: they inhibited bacterial growth while carrying spiritual significance, as pleasant fragrance was considered a divine quality.
These materials were remarkably effective. Chemical analysis of mummified remains has detected traces of cloves, cinnamon, and nutmeg, with organic tissues preserved for thousands of years. Researchers have identified terpenoids (compounds found in juniper oil, myrrh, and frankincense) as well as markers consistent with thyme, lavender, and eucalyptus in mummification materials.
Medicine and Healing
Nearly every major ancient medical tradition relied heavily on spices. In Ayurvedic medicine, which dates back over 3,000 years in South Asia, cumin, ginger, and coriander were prescribed to aid digestion by stimulating the production of digestive enzymes. Turmeric was used for inflammation. Long pepper was valued as an immune-supporting plant. Tulsi (holy basil) was administered against parasites and insect poisoning.
Modern clinical research has validated some of these traditional uses, particularly for turmeric. The active compound in turmeric reduces markers of inflammation in the blood. Clinical trials have shown improvements in people with osteoarthritis, with reduced pain scores after several months of use. In one trial, a turmeric extract combined with standard pain medication suppressed inflammation and improved clinical outcomes for knee osteoarthritis over four months. Trials in rheumatoid arthritis have also shown measurable improvement in disease activity scores over eight weeks. The effects are real, though generally modest compared to pharmaceutical options.
Ginger’s use for nausea and digestion, another ancient application, has similarly been supported by modern evidence. Many of these traditional remedies were built on centuries of careful observation, even if the underlying explanations (like Ayurveda’s system of balancing bodily energies) don’t map neatly onto modern biology.
Religious Ritual and Sacred Incense
Burning spices and aromatic resins was central to worship across the ancient world. In Egypt, incense featured in the daily liturgy before the cult image of the sun god Amon-Re and in mortuary rites, where the souls of the dead were believed to ascend to heaven in the rising flame. Fragrance was considered a divine attribute: incense both signaled the presence of the gods and pleased them.
The Babylonians burned incense extensively during prayer and while divining oracles. In ancient Israel, a specific incense blend of frankincense, storax, onycha, and galbanum (with salt as a preservative) was prescribed for liturgical use, and incense altars were set apart for these offerings by the 5th century BC. Greek and Roman religious practice followed a similar arc, moving from burning local aromatic woods to importing frankincense and other resins for public sacrifices and the cult of the emperor.
Incense also served a practical spiritual function: it was believed to drive away demons, a role that crossed cultural boundaries from Egypt to Greece.
Perfume, Cosmetics, and Personal Hygiene
In ancient Egypt, fragrant oils made from spices and resins served double duty as skin protection and perfume. The dry desert heat made moisturizing essential, and scented oils accomplished both goals at once. At feasts, guests were sprayed with aromatic mists, and women wore cones of scented animal fat on their heads that melted slowly throughout the evening, releasing fragrance into the air around them.
These weren’t frivolous luxuries. In a world without soap as we know it, aromatic oils and spice-based preparations were the primary tools of personal hygiene. Clove, cinnamon, and nutmeg appeared in cosmetic preparations alongside floral ingredients, and their antimicrobial properties meant they genuinely helped control body odor and skin infections, even if that mechanism wasn’t understood at the time.
Repelling Insects and Pests
Spices and aromatic plants were widely used as insect repellents, particularly in the Middle East and South Asia. Traditional Iranian medicine documented dozens of plants used against specific pests. Garlic was applied as a decoction to kill lice and repel bees. Frankincense was burned to kill flies. Asafetida, a pungent spice still common in Indian cooking, was burned as incense or rubbed as powder onto surfaces to repel insects and ants. Bay leaves were burned or powdered as a general insecticide. Basil’s fragrance alone was considered enough to keep insects away, and pennyroyal (a member of the mint family) was burned to repel clothes moths.
The methods varied: some plants were burned as incense, others applied as powders or decoctions, and still others simply placed in rooms or storage areas. Myrtle leaves were burned specifically against mosquitoes, while pomegranate was powdered onto surfaces as a general repellent. Many of these traditional applications have since been confirmed by modern entomological research, as the same volatile compounds that give spices their strong aromas are genuinely irritating or toxic to insects.
Wealth, Status, and Political Power
Perhaps the least obvious but most consequential use of spices was as a symbol of wealth. For most of recorded history, spices traveled thousands of miles from their origins in South and Southeast Asia to reach European and Middle Eastern markets. That journey made them extraordinarily expensive, and displaying them at the table was a direct statement of financial power.
Medieval European feasts featured dishes layered with saffron, cloves, ginger, and cinnamon not because the food needed rescuing, but because the host could afford to be extravagant. The spice trade drove the construction of vast trading networks, funded empires, and ultimately motivated the European voyages of exploration in the 15th and 16th centuries. Columbus was looking for a shorter route to the spice-producing regions of Asia when he reached the Americas. The Portuguese, Dutch, and British all built colonial empires partly on the control of spice-growing islands in what is now Indonesia. For centuries, controlling the spice trade was one of the most reliable paths to geopolitical power.