A glass teapot of deep amber-red rooibos with a curl of orange peel inside, a cup being poured, a honey dipper on a saucer and a tall glass of iced rooibos beside it

Red Rooibos With Honey and Orange Peel, Hot or Iced

Rooibos is the tisane to learn first because it forgives. It comes from a single shrub, Aspalathus linearis, which grows naturally only in the Cederberg region north-west of Cape Town, according to the South African Rooibos Council. It is naturally caffeine free, so a pot at nine at night costs nothing the next morning. And it carries fewer tannins than tea from the tea plant, which means a long steep at a full boil makes it deeper and rounder rather than bitter and drying. Black tea punishes an extra three minutes. Rooibos rewards them.

This recipe makes a pot of four cups, weighed and timed, with two strips of orange peel steeped in the pot and honey stirred into the cup. It then makes the same thing iced, and the iced method needs the most care, because cold steeping skips the rolling boil that Germany's food-safety institute says herbal tea needs. The whole thing takes twenty minutes, most of it waiting.

What rooibos is, in one paragraph

The Rooibos Council describes two products from the same plant. For the traditional red rooibos, the green leaves and stems are bruised and "fermented" in heaps, a process that is really oxidation driven by the plant's own enzymes. The needles turn from green to the deep amber-red behind the name, and the Council notes the drink is also called redbush. Green rooibos is dried immediately to prevent that oxidation. This recipe uses red. Mariage Frères Rouge Bourbon (shop Mariage Frères Rouge Bourbon) is a caffeine-free rooibos scented with vanilla, and Marco Polo Rouge (shop Marco Polo Rouge) is a caffeine-free rooibos scented with fruit and flowers. Either works here, and the orange peel suits the vanilla one especially well.

Ingredients, for a pot of four cups

  • 1 litre (about 4 1/4 cups) fresh cold water, plus a splash to warm the pot
  • 12 g loose red rooibos (about 5 heaped teaspoons), plain or scented
  • 2 strips of orange zest, each about 5 cm (2 in) long, with no white pith
  • 1 cinnamon stick, or a small pinch of ground cinnamon such as Burlap & Barrel Cinnamon Verum (shop Burlap & Barrel Cinnamon Verum) (optional)
  • 4 teaspoons honey, or to taste; an orange blossom honey such as Bee Squared Apiaries Orange Blossom (shop Bee Squared Apiaries Orange Blossom) repeats the peel
  • Whole milk, to taste (optional)

The ratio. The Mariage Frères brewing sheet for its rooibos blends asks for 2.5 g of leaf in 200 ml of water. Scaled to a litre, that is 12.5 g, so this pot's 12 g is the producer's own strength, rounded to a number a kitchen scale reads cleanly. The same sheet steeps for five minutes, and this recipe doubles that for the reasons below. Rooibos is cut into fine needles, so a teaspoon measure is less reliable than a scale. Weigh it if you can, and fall back on five heaped teaspoons.

Method

  1. Boil fresh water. Fill the kettle with fresh cold water and bring it to a full rolling boil. Not a kettle that clicked off five minutes ago, and not the hot tap on a water dispenser.
  2. Warm the pot. Swirl a splash of hot water around the teapot and pour it out, so the pot does not pull heat out of the brewing water.
  3. Leaf, peel, spice. Weigh 12 g of rooibos into the warm pot, loose, or into a large infuser with a fine mesh. Add the orange zest and the cinnamon, if using. Rooibos needles are small, and a coarse ball infuser lets them through.
  4. Pour at the boil. Pour on the litre of water while it is still at a rolling boil. Lid on, then a folded towel or a cosy over the pot.
  5. Steep ten minutes. Never less than five. Taste a spoonful at five minutes, when it will be light and sweet, and again at ten, when it will be a deep red with a round, honeyed body. Ten is where this recipe lands. It will not turn bitter in that time.
  6. Get the leaf out. Lift the infuser, or pour through a fine strainer into a second warmed pot or a jug.
  7. Honey in the cup. Put a teaspoon of honey in each cup, pour the hot rooibos over it and stir. It dissolves at once. Add a splash of milk if you like. Drink it hot, and refrigerate what is left rather than leaving the pot on the counter.

Why a full boil, and why ten minutes

Two separate authorities arrive at the same instruction for different reasons. Germany's Federal Institute for Risk Assessment (BfR) advises that herbal teas "should always be made with water at a rolling boil" and allowed to infuse "for at least five minutes." Its concern is not flavour. Dried plant material can carry bacteria, yeasts and moulds, in rare cases salmonella, and the BfR notes that water from hot-water dispensers, typically 80 to 85°C, is not hot enough to deal with them reliably. It adds that spores survive boiling and can germinate in warm tea left standing, which is why the last step sends leftovers to the fridge.

The flavour argument comes from the chemistry. In a guide published by the Rooibos Council, Michelle Francl, professor of chemistry at Bryn Mawr College, recommends boiling water and a ten-minute steep, noting that rooibos "contains fewer tannins," the polyphenols behind the dry, puckering feeling on the tongue, and has "a sweet rather than bitter or astringent taste." She adds that beyond about ten minutes its antioxidants begin to degrade with exposure to oxygen. So the long steep is not a compromise between safety and taste. For rooibos the two point the same way.

The Denver note

In Denver the kettle cannot reach 212°F. New Mexico State University Extension puts the boiling point of water at 5,000 feet at about 202°F, and Colorado State University's table gives 203°F. The Mariage Frères sheet for its rooibos asks for water at 95°C, which is 203°F. At sea level that means water a little off the boil. A mile up, a full rolling boil already lands within about a degree of the producer's number, so the right move in a Denver kitchen is to pour the moment the kettle boils and not let it sit.

Colorado State University notes that foods boiled or simmered at altitude cook at a lower temperature and need longer, and extension guidance for simmered meats at 5,000 feet is that they may need about a quarter more time. Rooibos needs no arithmetic. It already gets ten minutes, and ten is generous at any altitude. The only Denver mistake is stopping at five. The rest of the kitchen at altitude is in Cooking at Altitude.

Iced rooibos, brewed hot

Cold-steeping, leaf left in cold water in the fridge overnight, skips the rolling boil the BfR says herbal tea needs. The iced version here is brewed hot at double strength and chilled fast by the ice itself.

  1. Weigh 12 g of rooibos, the orange zest and the cinnamon into a heatproof jug.
  2. Pour on 500 ml of water at a rolling boil and steep ten minutes, as above.
  3. Stir in 2 tablespoons of honey while it is hot; honey dissolves poorly in iced tea.
  4. Strain the hot concentrate over 500 g of ice in a large pitcher and stir until most of the ice has melted. The result is about a litre at drinking strength, already cold.
  5. Serve over fresh ice with a strip of orange peel, and keep the pitcher in the fridge.

Why it went wrong

Symptom Cause Fix
Thin, pale, tastes of hot water Too little leaf, a short steep, or water that had fallen off the boil Weigh 12 g per litre, pour at a rolling boil, and give it the full ten minutes
Red grit at the bottom of the cup Fine rooibos needles slipped through a coarse infuser or strainer Use a fine-mesh basket or a paper filter, and leave the last spoonful in the pot
Iced version tastes watery Single-strength tea poured over ice Brew the concentrate at 12 g in 500 ml, then dilute with the ice
Honey sits in a lump at the bottom Honey added to cold tea Stir honey into the hot tea, in the cup or into the concentrate before it meets the ice
A pot forgotten on the counter overnight Spores survive boiling and can germinate in tea left standing Pour it out. Next time, strain and refrigerate what is not drunk hot

Notes and variations

With milk, the South African way. The Rooibos Council notes that in many countries rooibos is drunk without milk, while many South Africans take it hot with milk and sugar or honey. The ten-minute pot is strong enough for a splash. Other tisanes, same rule. The method carries straight over to chamomile and peppermint. Mariage Frères Chamomilla (shop Mariage Frères Chamomilla) and Mentha Piperita (shop Mentha Piperita) go into water at a rolling boil for at least five minutes, per the BfR, with the peel and cinnamon left out. Taste them from five minutes on and stop when they suit you; the ten-minute case above is made for rooibos specifically. Honey. Do not give honey to a child younger than one year old, per the CDC, and sweeten a child's cup another way. Honey: The Complete Guide covers the varietals worth stirring in.

Equipment. A 1.25-litre pot such as the Grosche Joliette glass infuser teapot (shop Grosche Joliette glass infuser teapot) holds the litre with room for the basket and shows the colour deepening minute by minute. For one cup, use 3 g of leaf in 250 ml and a loose-leaf tea steeper (shop loose-leaf tea steeper). The Loose-Leaf vs Tea Bags guide explains the difference between leaf and bag. Keeping the leaf. A tin of scented rooibos that has lost its vanilla or its fruit brews a flat pot however well it is timed, and the Does Loose-Leaf Tea Go Bad? guide covers keeping it.

What to serve with it. A cup of vanilla rooibos with honey wants something almond or butter: Antonio Mattei biscotti di Prato (shop Antonio Mattei biscotti di Prato) for dunking, or Filet Bleu palets bretons (shop Filet Bleu palets bretons).

Sources & Further Reading

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