Yerba mate is a traditional South American herbal infusion made from the dried leaves and stems of the Ilex Paraguariensis plant.

It is especially popular in countries such as Argentina, Uruguay, Paraguay and southern Brazil, where it has been part of everyday life for generations. For many people there, it is more than a drink - it is a daily ritual and a shared moment.

In the UK, yerba mate is still less well known than coffee, green tea or matcha. But more people are starting to discover it, partly because it offers something that feels more rooted and more distinctive.

Is yerba mate a tea?

Yerba mate is often described as a tea because it is brewed with hot water and drunk as an infusion.

Strictly speaking, though, it is not tea in the traditional sense, because it does not come from the Camellia Sinensis plant, which is used to make black tea, green tea and oolong tea. 

Yerba mate has a unique blend of vitamins, minerals and antioxidants, sitting somewhere between tea, coffee and its own world entirely.

What does yerba mate taste like?

Yerba mate has a bold, earthy and herbal flavour. Depending on the yerba type, it can taste grassy, gently bitter, rounded, or slightly smoky. 

Stems' yerba mate has been selected to be herbal and characterful, but also to feel less sharp and more rounded - a great starting point if you are new to mate, and a reliable go-to if you drink it daily. 

For someone trying it for the first time, it may feel quite different from sweeter or lighter herbal teas. It has more depth and weight than most teas, but usually feels less sharp than coffee.

It is one of those drinks that often becomes more interesting with each cup. Like coffee, dark chocolate or red wine, part of its appeal is its character.

Why do people drink yerba mate?

People come to yerba mate for different reasons.

Some enjoy it as a natural source of caffeine and theobromine, and see it as an alternative to coffee. Others are drawn to its bold flavour. And many people fall in love with the experience around it - the slower preparation, the repeated pouring of hot water, and the culture of sharing that surrounds it.

That wider experience is a big part of what makes mate different. It is not always treated as something quick or disposable. More often, it is something you sit with, return to, and enjoy over time.

How is yerba mate traditionally prepared?

Traditionally, yerba mate is prepared in a mate gourd and drunk through a bombilla, which is a filtered metal straw.

The loose yerba is placed into the gourd, hot water is poured over it, and the drink is sipped through the bombilla. The same yerba can be topped up with water many times, so one preparation lasts for a while.

This traditional method is part of what gives mate its identity. There is a rhythm to it that feels different from making a quick cup of tea or grabbing a coffee to go. It invites you to slow down a little.

Why is yerba mate so important in South America?

In much of South America, mate is woven into daily life.

It is shared between friends, family, colleagues and team-mates. It appears during conversations, road trips, study sessions, work breaks and afternoons in the park. In places like Argentina and Uruguay, seeing someone carrying a thermos and mate is completely normal.

That cultural depth is one of the things that makes yerba mate so appealing. It does not feel like a product invented to match a trend. It comes with a real history, a real place, and a real way of life behind it.

Why are more people in the UK becoming interested in yerba mate?

Part of the answer is that people are looking for something beyond the usual.

Some want an alternative to coffee. Some are curious about traditional drinks from other cultures. Some are simply looking for a drink with more personality than standard tea bags and café coffees.

Yerba mate stands out because it offers more than just function. Yes, it contains natural caffeine, theobromine and a unique blend of vitamins, minerals and antioxidants. Yes, it can become part of your daily routine. But it also carries a sense of tradition, connection and ritual that feels rare.

For people in the UK discovering it for the first time, that is often what makes it memorable.

In simple terms

Yerba mate is a traditional South American herbal infusion with a bold, earthy taste, natural caffeine, and a culture built around preparation, sharing and daily life.

It is not quite tea. Not quite coffee. Not quite like anything else.

And that is exactly why so many people grow to love it.

At Stems, we want to make yerba mate more approachable in the UK without losing what makes it special - its flavour, its tradition and the culture behind it.