Tea: is it a science or an art?

But tea’s story did not end within the borders of the East. Carried by travellers, monks and merchants, it journeyed along the Silk Road, traversing the Himalayas and desert plains, making its way to Japan, Central Asia, Persia and eventually, Europe. In the 6th century, Japanese envoys returned home with tea seeds and sensibilities, sowing the beginnings of chanoyu, the ceremonial practice of tea.

By the 16th century, tea had graced the refined tables of English society, becoming synonymous with sophistication and leisure. It took root in European culinary life as a quiet yet essential presence that soon spread across the globe.

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A teapot appears almost everywhere. It might begin the morning, bring calm during tense meetings, or round off a meal with quiet warmth. Tea moves with us from sunrise to evening, carrying subtle scents that transport the senses elsewhere. From one modest leaf, tea has fostered one of the most far-reaching cultural exchanges in human history. It is both a science, demanding meticulous study, and an artistic muse that stirs the imagination. Complex and enigmatic, yet gentle and profound, tea reveals many layers of beauty. Join Tatler as we explore whether tea is, in fact, science or art.

All tea, across continents and cultures, begins with the same plant: Camellia sinensis.

Tony Gebely, founder of the American Specialty Tea Alliance (ASTA), approaches tea through a scientific lens in his acclaimed works The Philosophy of Tea and Tea: A User’s Guide. He explores the biology behind flavour and sensation, from catechins (a class of polyphenols), to theanine (an amino acid found uniquely in green tea), to caffeine: all compounds that trigger physiological responses of sharpening focus, easing stress, and enhancing clarity.

In the wave of specialty tea, the American Specialty Tea Alliance (ASTA), founded by Tony Gebely, has championed the concept of “precision tea”—tea that is cultivated, selected, packaged and brewed according to rigorous scientific standards. Every detail is controlled: temperature, acidity, oxidation time. At this level, every element of the process from plant variety and growing conditions to roasting techniques and brewing formulas is precisely calibrated to achieve consistent quality and distinctive flavour with every batch.

Each type of tea has its own unique chemical profile, revealed through its active compounds, colour and taste. Green tea, for instance, is high in EGCG (epigallocatechin gallate), a potent antioxidant that lends a gentle astringency and cooling freshness. Black tea, on the other hand, is rich in theaflavins and thearubigins, compounds formed during oxidation that give it its characteristic amber hue and full-bodied, slightly sweet astringency. Processes such as oxidation, heat-drying and fermentation are complex biological changes, requiring tight control of time, temperature and humidity to bring out the best balance of flavour, aroma and appearance.

In the hands of nature and the people who tend the land, each tea-growing region develops a distinctive “soul”, what experts call terroir. Once a term reserved solely for wine, terroir is now embraced by the craft tea community to explain why the same variety of tea, grown on the rocky plateau of Ha Giang, carries a flavour unlike that of tea cultivated in other midland regions.

Agronomists and researchers have established that elements such as soil composition, altitude, sunlight, humidity, rainfall and even local air currents directly influence the scent and finish of tea leaves. Terroir is the interplay of soil, elevation, climate, light, imperceptible breezes, and microbial life hidden beneath the surface, but it also encompasses the human touch: the way we nurture the earth, harvest the leaves, dry them, and stay in tune with the rhythm of the seasons. With science, technology and culinary innovation, we now understand these precious tea regions better than ever before.

Take, for instance, tea grown in high-altitude regions like Darjeeling or Alishan. It tends to have a crisp clarity and a long, lingering finish, a result of dramatic temperature shifts between day and night. By analysing soil strata, pH levels and mineral traces, farmers can refine their cultivation techniques, crafting a signature flavour profile unique to each place. Tea, then, is far more than a simple agricultural crop. It is a product of science, of experimentation and research, of microclimates, rich soil, and intricate microbiology.

Readers note:

Terroir is a French term, traditionally used in the wine world, now increasingly applied to artisanal food and drink from tea to coffee, to cacao and beyond.

In tea, terroir refers to the sum of natural and ecological influences specific to the growing region.

“Precision tea” is a modern term in the specialty tea movement, describing the method of producing, processing and brewing tea according to strict scientific principles, much like in the world of fine wine or third-wave coffee.

But science alone does not complete the experience. It is the art that gives tea its quiet, ineffable beauty.

Nowhere is this more exquisitely expressed than in the Japanese tea ceremony. Far more than a drink, tea in Japanese culture becomes a ritual; a poetic embodiment of Zen philosophy lived out through everyday gestures. Every motion in the tearoom, from the folding of the fukusa cloth to the gentle heating of water in the tetsubin iron kettle, from whisking matcha with the chasen bamboo whisk to the delicate rotation of the tea bowl, follows a precise choreography imbued with symbolism and stillness.

Silence, solitude, simplicity… aesthetic ideals such as wabi-sabi and shibui are embodied in the atmosphere of the tea room. Picture a modest wooden chamber, bathed in soft light, with a classical painting on the wall and a ceramic vase bearing the marks of the artisan’s hand. Together, they create a sense of serenity, a quietude that feels almost otherworldly. The tea ceremony is no mere ritual, but a state of presence. It invites participants to listen to silence, release the clutter of daily life, and inhabit the moment fully.

Tea artisans across Southeast Asia, China, and Korea also place great importance on spatial design, crafting their own rituals with care. It might be a simple wooden table set in a secluded garden, a set of hand-thrown ceramic cups finished in luminous glaze, or a solitary cup enjoyed at dawn while dew still lingers on the leaves.

Every detail is thoughtfully selected to create a distinctive “aesthetic context” in which the drinker not only tastes tea, but also listens, breathes, and reconnects with the present. The way tea is poured, the movement of a hand pulling back before returning to the cup to admire the flow, the rising steam forming a faint curl above the rim, or the choice of a particular vessel to suit each tea… all are artistic decisions. They appeal to the eye, the hand, the nose, and at times carry a spiritual significance. For these artisans, tea becomes a profoundly subtle form of storytelling. After sharing tea for just a week, one might begin to understand the other person, if only through the gestures and rhythms of their tea rituals.

In Vietnam, tea culture and the art of tea remain a quiet niche. Less youthful and contemporary than coffee, far from the exuberance of beer or wine, and certainly removed from the current frenzy surrounding milk tea, the Vietnamese tea ceremony is gentle and reserved, yet always quietly burning beneath the surface. There’s something ethereal, rustic and unpretentious in every Vietnamese tea drinker and enthusiast. They offer an introduction to the country’s tea traditions, its deep-rooted rituals, and the diversity of Vietnamese tea itself. A porcelain cup of green oolong, delicately scented with magnolia, or a deep, earthy Ta Xua tea savoured in a tranquil space: these are the moments many of us seek in modern life.

A single cup of tea may mark the beginning of many things. A quiet conversation with oneself, a contemplative thought, or a deeper appreciation of life’s subtleties. Tea, as we see, is rooted both in the exacting science of precise measurements and standards, and in the soft, elusive artistry that brings depth and grace to the everyday.

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