Bombilla and matero: what they are and how to choose Yerba Mate accessories

You get a pack of Yerba Mate, you open it, you smell those dark green, dried leaves, and then what? Without the right vessel and straw, you won’t be able to brew it the way it’s done in Argentina or Paraguay. Two elements decide the whole ritual: bombilla and matero. The first brewing can be discouraging if the gear is random, but a well-matched set changes everything from the very first sip.

What is a bombilla

A bombilla is a metal tube ending in a strainer, through which you drink the infusion straight from the vessel. The Yerba Mate leaves stay inside, only the liquid reaches your mouth. Without it, you’d have to strain the infusion through your teeth or a tea strainer, which in practice doesn’t work with such finely cut dried leaves.

The lower part of the bombilla has perforations or a wire spiral that lets water through but holds back leaves and twigs. The denser and better-designed the strainer, the less dried leaf material escapes into your mouth with each sip, and that’s the biggest frustration with cheap, random straws. The material matters: food-grade stainless steel doesn’t react with hot water and doesn’t change the flavour of the infusion, unlike plastic substitutes, which after a few weeks start to smell of their own material.

What is a matero

Matero is the vessel you drink yerba mate from — in Spanish, simply mate. In Poland, the name “matero” has come to refer to the vessel itself, so it doesn’t get confused with the drink, and this distinction makes shopping easier. When you’re looking for a bombilla, you’re buying a straw. When you’re looking for a matero, you’re buying a vessel.

Traditionally, matero was made from a dried, hollowed-out and cured calabash gourd. This form is still common, but it has a drawback: raw gourd absorbs moisture and odours, so it requires constant care, otherwise it can develop mould on the inside. More modern versions are made of ceramic, wood or glass. Ceramic wins on hygiene, since it doesn’t absorb anything and washes like an ordinary mug, while looking just as striking as a traditional gourd — without the risk of something starting to smell after a month.

How a bombilla and matero work together

The pairing works on a simple principle. Dried leaves fill a third or half of the vessel, you insert the bombilla at an angle so the strainer rests against the bottom, and you pour in water gradually, ideally not boiling, around 70-80 degrees. Water that’s too hot scalds the leaves, making them bitter, and destroys part of the aroma, which is why experienced mate drinkers rarely use water straight from the kettle.

A single vessel is enough for many refills, until the leaves lose their colour and flavour. So the same matero stays with you all afternoon, more than a single cup as with classic tea. That’s why the capacity of the vessel matters: a smaller one works well for a quick break, a larger one for a longer session while working or chatting with friends.

The leaves soak up water and start taking up more space, so a vessel filled to the brim at the start soon becomes cramped. Experienced drinkers always leave some free space near the top edge, so that a refill doesn’t spill over at the first sip. It’s a detail no one mentions in product descriptions, yet it ruins people’s first experience with mate more often than poor-quality leaves do.

How to choose a bombilla

Three things determine whether a straw will last for years or end up in a drawer after a month: material, filter type and length.

Stainless steel is the standard worth choosing if you don’t want to worry about maintenance. In the Premium Bombilla from the Jewellery Collection, the body is made of food-grade 304 stainless steel, so it’s resistant to corrosion and safe for prolonged contact with hot infusion. The strainer at the bottom is precisely perforated, holding back leaves and twigs, and the set includes a cleaner for clearing the holes when they get clogged with bits of dried leaf. This happens with every bombilla, regardless of price.

The filter type also varies between models. Older, traditional bombillas have a spiral of thin wire wound around the tube — simple to make, but hard to clean, since leaves get wedged between the coils. Newer versions, like ours, have a perforated basket-shaped tube that’s easier to rinse and clear with a cleaner, which makes it work better with finely cut leaves and herbal blends, where a spiral would clog up quickly.

Choose the tube length to match the height of your vessel. Too short and it won’t reach the bottom, where the infusion is most flavourful; too long and it will be uncomfortable to drink from. Looks matter too, for many people. The Jewellery Collection version has a decorated, inlaid tip in five colours, from white agate to turquoise, so you can match it to the rest of your set instead of buying yet another plain grey tube.

Premium Bombilla from the Jewellery Collection

Food-grade 304 stainless steel, a precise filtering strainer and a cleaner included. Five colour variants of the decorated tip, from white agate to turquoise.

Check out the product: Decorated Bombilla Premium Straw with Cleaner – JEWELLERY COLLECTION

How to choose a matero

Ceramic, wood or glass, the question really comes down to how much maintenance you want to deal with. A ceramic matero doesn’t need anything beyond a regular wash, doesn’t absorb odours and doesn’t crack from changes in humidity the way a raw gourd or wood does, which need regular drying and careful attention to avoid cracking.

The Exclusive Matero Volcanic Black has a matte, stone-like finish inspired by basalt, thick walls that hold the infusion’s temperature longer, and a capacity of 350 ml at a weight of 320 g, so it holds a solid portion of dried leaves for several refills. The ceramic is free of cadmium and molybdenum in line with EU standards, which matters because you drink directly from this vessel, often every day. The shape keeps the classic gourd proportions, so it sits well in the hand despite the different material.

Exclusive Matero Volcanic Black

Ceramic free of cadmium and molybdenum, matte finish in volcanic black, 350 ml capacity. Thick walls keep the infusion warm for longer.

Check out the product: EXCLUSIVE MATERO – VOLCANIC BLACK

A starter set, if you’re starting from scratch

If you’re just getting into yerba mate and don’t want to put the kit together piece by piece, it’s easier to buy a ready-made set. The Yerba Mate Starter Set combines a bombilla, a matero, a wooden beech scoop for dosing the dried leaves and a pack of Yerba Herbal Balance, a blend with six added herbs, all in one box – check the current price. Instead of guessing whether the straw fits the gourd, you get a perfectly matched kit straight away, and the beech wood scoop saves you from measuring the dried leaves by eye, which matters on your first attempts, because it’s easy to use too much.

Yerba Mate Starter Set – Bombilla + Matero + Yerba + Scoop

A set for beginners: bombilla, matero, beech scoop and a pack of Herbal Balance Yerba, all at one price.

Check out the product: YERBA MATE STARTER SET – BOMBILLA + MATERO + YERBA HERBAL BALANCE + BEECH SCOOP

Which variant suits whom

If you like everyday items to look like jewellery and want something you can show off to friends, look towards the decorated bombilla with a gemstone and a ceramic matero in a bold colour. If you prefer plainness and minimalism, choose matte ceramic in a muted shade, like volcanic black, and a simple steel straw with no decoration. People who drink mate occasionally don’t need a large vessel, a smaller capacity and a basic set will do. Those who drink it daily and in large amounts will appreciate a bigger matero, so they don’t have to brew a fresh one every half hour.

A starter set also works well as a gift for someone who’s only just heard about mate, since it doesn’t leave the recipient wondering what else they need to buy. Someone who has been drinking mate for years and already has their own vessel will more likely reach for just a bombilla to add to their collection, or a new matero in a different finish.

Everyday care and cleaning

You rinse the bombilla under running water after each use, and every so often you push a cleaner through the filter to remove bits of dried leaf that settle in the holes. No chemicals are needed for this, warm water is enough. If you notice the flow of the infusion getting weaker than usual, it’s a sign the filter needs cleaning before it clogs up completely.

You wash a ceramic matero like any regular dish, with a sponge and washing-up liquid, without worrying about smells or staining. If you happen to have a traditional gourd or a wooden vessel, always let it dry fully, uncovered, because moisture trapped inside is a straight path to mould. This one habit, drying it after every brew, is what separates a vessel that lasts for years from one you have to throw away after two months. Ceramic never has this problem, which for many people is the final argument to start with it.

A well-matched bombilla and matero pair is a one-time expense that pays off with every brew, because you won’t have to wonder whether the leaves will get stuck between your teeth or whether the vessel will survive another week. Start with a material that truly suits you, choose a size based on how much you drink at once, and leave the rest to the ritual.