Rooibos Tea

Long before rooibos became a global commodity, the Khoisan people of the Cederberg region — one of the oldest indigenous cultures on earth — were harvesting the wild shrub and using it as a beverage and in traditional practices. Their knowledge of the plant was the foundation on which the commercial rooibos industry was eventually built, though the history of how that knowledge transfer happened is a complex one involving colonialism, appropriation, and later efforts to recognise and compensate the original knowledge holders.

The first recorded mention of rooibos by a European is generally attributed to Carl Humberg, a botanist who visited the Cape in 1772, though he did not document its use as a tea in detail. The plant languished in relative obscurity to the wider world until the early 20th century, when a Russian immigrant named Benjamin Ginsberg, having observed local Afrikaner and Khoisan people brewing the needles, recognised its commercial potential and began promoting it as a tea substitute during World War I, when imported tea was scarce and expensive.

In the 1930s, Ginsberg enlisted the help of Dr Pieter le Fras Nortier, a local doctor and botanist who developed successful cultivation and seed germination techniques. Before Nortier's work, rooibos grew only wild and was harvested by hand from mountain slopes — his cultivation breakthroughs transformed it into a viable commercial crop. The Cederberg farming families who adopted rooibos cultivation, many of whom still farm it today, regard him as a founding figure of the industry.

Rooibos remained primarily a South African drink through most of the 20th century, well-loved locally but little known internationally. The global wellness and herbal tea boom of the 1990s and 2000s changed this dramatically. Rooibos began appearing in European and American health food stores, then in mainstream supermarkets, and its uniquely appealing combination of familiar tea-like character without caffeine or tannins made it an immediate success.

Today, rooibos is exported to over 60 countries. In 2021, it received EU Protected Designation of Origin status, meaning only rooibos grown in the designated Cederberg region of South Africa can legally be marketed as "Rooibos Tea" in EU markets — a significant recognition of its geographic and cultural specificity.

Rooibos has attracted substantial scientific research interest, partly because its unusual chemical profile — specifically its lack of caffeine and very low tannin content — makes it an interesting subject for nutritional science, and partly because of its growing global consumption.

The plant is rich in antioxidant compounds, most notably aspalathin and nothofagin — two dihydrochalcone flavonoids that are unique to rooibos and found in no other plant. This chemical uniqueness has made it a subject of particular interest to researchers studying antioxidant mechanisms. In laboratory settings, aspalathin has shown interesting properties, though what in vitro antioxidant activity means for health outcomes in people who drink rooibos tea is a more complex question that is still being investigated.

It is worth noting that green rooibos contains significantly more aspalathin than red (fermented) rooibos — the oxidation process during fermentation converts much of it into other compounds. If the antioxidant profile is a specific reason for your interest in rooibos, green rooibos is worth exploring, though it has a different, less familiar flavour.

Rooibos's complete absence of caffeine and very low tannin content make it genuinely distinctive in the tea world. Unlike decaffeinated Camellia sinensis teas, rooibos has never contained caffeine — there is no processing involved in its absence. For people with caffeine sensitivity, or those who want a tea-like experience at any hour, this is a meaningful practical advantage.

Research has also examined rooibos in relation to cardiovascular markers, blood glucose, and inflammatory processes. These investigations are ongoing, and while some findings are encouraging, the evidence is not at a stage where any health claims are appropriate. See our disclaimer for the full picture.

Flavor profile

Red rooibos has a flavour profile that is genuinely its own: smooth, mild and naturally sweet, with warm woody notes, a hint of vanilla, and a very faint earthiness. There is a soft fruitiness in good-quality rooibos — sometimes described as dried apricot or peach — and the overall impression is of a rounded, friendly cup without edges.

The natural sweetness is one of rooibos's most distinctive attributes — it does not need sugar to taste pleasant, which is unusual among herbal teas. This sweetness is intrinsic to the fermented needle chemistry, not added or processed in.

Green rooibos has a lighter, grassier, more herbaceous character with less sweetness and less warmth. It is more vegetal and subtle — appealing to some palates, more challenging to others. The two are worth trying side by side.

Aroma

The aroma of rooibos tea is warm, faintly sweet and gently woody — like dried autumn leaves with a trace of honey and vanilla. It is a comforting, unfussy scent rather than an arresting one; it invites rather than announces. Some high-quality rooibos has a pleasantly floral edge that reveals itself as the cup cools slightly.

Unlike chamomile or peppermint, rooibos does not fill a room with its aroma. But lift the cup close and breathe slowly before the first sip — the warmth of the steam carries the vanilla-and-wood notes clearly, and it is a genuinely pleasant experience.

Rooibos is the most forgiving herbal tea to brew. Unlike chamomile, it does not go bitter with extended steeping; unlike peppermint, it does not lose its character if you forget to cover the cup; unlike hibiscus, it does not become unpleasant if you misjudge the ratio. This robustness is a large part of why it works as an everyday tea — you do not have to think carefully about it every time.

That said, brewing it well rather than adequately rewards the small amount of extra attention it takes. Use plenty of leaf or a good-quality bag; pour boiling water directly over the rooibos; steep for a full 7 minutes; cover the cup. The difference between a 3-minute steep and a 7-minute steep is noticeable: the shorter brew is pale, thin and slightly sharp; the full brew is a rich amber-red with developed sweetness and body.

Rooibos is one of the very few herbal teas that works well with milk — a quality it shares with black tea and which most herbals cannot match. Adding a splash of milk (dairy or plant-based) transforms it into something that feels genuinely tea-like and satisfying, and is how many South Africans drink it traditionally.

The most distinctive serving quality of rooibos — especially compared with other herbal teas — is that it genuinely takes milk. A good splash of cold whole milk or oat milk turns a cup of rooibos into something that feels familiar and comforting to anyone who grew up with breakfast tea. The combination is smooth and warming in a way that few caffeine-free alternatives can match.

Plain rooibos with a little honey is an excellent all-day drink: sweet enough to feel satisfying, mild enough not to compete with food or conversation. A slice of lemon adds a brightness that lifts the woody base notes and creates a slightly different, more citrusy experience.

Iced rooibos is excellent and underrated. Brew it strong (double the normal amount), sweeten with honey or agave while hot, let it cool, then pour over ice. The amber-red colour over ice with a citrus slice is simple but attractive, and the mild, sweet flavour works beautifully cold. It is a good alternative to iced black tea for anyone avoiding caffeine.

Rooibos also works as a base for more complex drinks: a rooibos chai (simmered with cardamom, cinnamon, ginger and black pepper, finished with frothy milk) is a caffeine-free version of a masala chai that holds up surprisingly well. It is not quite the same, but as an alternative it is genuinely satisfying.

Rooibos is relatively stable in storage compared with more volatile herbal teas like chamomile or peppermint — it does not lose its character dramatically in the first few months after opening. That said, proper storage still matters for the best long-term experience.

Keep loose rooibos in an airtight tin or dark glass jar, away from strong-smelling spices (rooibos can absorb ambient aromas) and away from heat and moisture. Not on the windowsill; not above the kettle. A dry, dark cupboard is ideal.

Stored correctly, good-quality rooibos stays pleasant for up to 24 months, though it is at its best within 12–18 months. Quality loss is subtle with rooibos: the flavour becomes slightly flatter and the natural sweetness diminishes before any off-notes develop. When it starts tasting slightly "dusty" or loses its warmth, it is time for a fresh batch.

Pre-packaged rooibos bags are more protected by their individual wrappers and tend to stay fresh to their printed best-before date. Loose-leaf rooibos benefits from being decanted into a proper tea tin rather than kept in its original often-thin paper bag.

See our complete storage guide for more detail on keeping dried botanicals in good condition.

Rooibos is, quite genuinely, the single most beginner-friendly herbal tea there is. It is almost impossible to brew badly: it does not go bitter with over-steeping, it does not turn harsh if the water is slightly too hot, it does not need careful measuring, and it suits milk, lemon, honey or nothing at all with equal grace.

If you are new to herbal teas and uncertain where to start, rooibos is the safest, most rewarding entry point — it requires almost no learning curve and provides an immediately satisfying, proper cup. Once you have a baseline, it is also an excellent ingredient for simple blending: adding a small amount of dried orange peel or a cinnamon stick to the steep is an easy first step into flavour experimentation.

Rooibos is also worth trying in both its forms: red (fermented) first for the familiar warmth, then green rooibos to understand how dramatically processing changes a plant's character. The comparison is instructive for anyone wanting to understand how botanical teas work. The blending guide and the brewing basics guide are good next steps once you have settled into a rooibos routine.

Rooibos has generated a respectable volume of scientific literature, much of it centred on its unique flavonoid compounds — particularly aspalathin, which is not found in any other plant and has therefore attracted considerable scientific curiosity. South African research institutions have been especially active in this area.

The most studied areas include antioxidant activity, cardiovascular markers, and glucose metabolism. As with most herbal teas, the picture involves a mixture of well-established in vitro findings (laboratory effects of isolated compounds) and more tentative clinical evidence (effects in people drinking the tea). The gap between these two types of evidence is important to keep in mind when reading science headlines.

One practical finding that is well-supported is rooibos's lack of caffeine and very low tannin content — these are chemical facts, not research-dependent. The practical benefit for everyday drinkers who want to avoid stimulants or tannin-related digestive sensitivity is real and requires no further clinical evidence to justify.

For anyone wishing to read the research more deeply, PubMed and university health databases are the best resources. South African academic journals — particularly those from Stellenbosch University — have published some of the most detailed work on rooibos chemistry. Our guide to reading herbal tea research explains how to evaluate sources and avoid the common trap of mistaking in vitro findings for clinical claims.