Skip to main content

Science attempts to settle a long-running dispute among Brits

How You've Been Making Tea Wrong Your Entire Life - BBC

It’s an issue about which every Brit has a strong opinion; one that can lead to lively conversations, impassioned debates, and even heated arguments. In a worst-case scenario, it can descend into a slanging match full of expletives.

Recommended Videos

No, we’re not talking about Brexit. We’re talking about how to make the perfect cup of tea.

Please enable Javascript to view this content

Making the perfect cup of tea is a hugely controversial matter in the U.K. Arguments abound over whether to add the milk before the water or vice versa (or whether to put milk in at all), how long to let the tea bag steep, whether to squeeze it,  how much sugar to add (or not) … and so on.

It should be noted that while the act of forgoing loose leaves in favor of tea bags will be considered by most purists as an unforgivable deed bordering on the scandalous, the convenience of the little packets of dried leaves means it’s the method of choice for most Brits.

Indeed, it’s the humble tea bag that features in a recent BBC show (above) that turned to science to try to discover how to make the perfect cuppa.

Trevor Mogg

Calling on the services of scientist and expert tea maker Stuart Farrimond, presenter Cherry Healey sets out to learn the dos and don’ts when it comes to knocking together a brew.

Healey starts off by showing Farrimond how she would usually make a cup of tea, though instead of a teacup or mug, she uses a styrofoam cup similar to what you get from a drinks machine.

Healey’s routine involves first putting the tea bag in the cup, followed by the hot water, and then squeezing the bag while saying, “La-la-la-la.” Note: It’s not clear if this unexpected utterance is part of her usual routine, perhaps performed in the belief that it helps to infuse the full flavor of the tea into the water, or merely a habit she’s had since childhood, but it’s really not thought to make any difference to the taste of the drink.

Casting a critical eye over the final result, Farrimond comments somewhat harshly that the effort “leaves a lot to be desired.” Why? For starters, that styrofoam cup is actually good for nothing (apart from stopping the drink from going everywhere, obviously). Such cups absorb flavor molecules, the scientist explains, taking the taste down a notch even before you’ve had a chance to sip it.

Avoiding hard water is also very important, according to Farrimond, as the calcium within it causes a chemical reaction that not only reduces the tea’s flavor, but also produces an unattractive scum.

Prep time

With no word on the eternal water-before-milk-or-milk-before-water debate, Farrimond instead focuses on preparation time, telling Healey to make a cup of tea by letting the bag steep for a full five minutes — way longer than most people have the patience for. The presenter obliges, and, thankfully, refrains from saying “la-la-la-la” the whole time while the drink sits there.

Leaving the tea to steep for longer boosts not only the flavor, but also the drink’s levels of antioxidants and caffeine, says the scientist.

With the drink finally ready, the presenter performs the all-important taste test.

“This actually has flavor,” a wide-eyed Healey says with so much enthusiasm that you can’t help wondering if she’s been drinking something akin to dirty bathwater all her life.

So there you have it — how to make the perfect cup of tea. Perhaps.

Trevor Mogg
Contributing Editor
Not so many moons ago, Trevor moved from one tea-loving island nation that drives on the left (Britain) to another (Japan)…
The affordable Ecobee Smart Thermostat Essential is now available following debut at CES 2025
the Ecobee Smart Thermostat Essential on a green wall

After making a splash at CES 2025, the Ecobee Smart Thermostat Essential is now available for purchase. More affordable than both the Smart Thermostat Enhanced and Smart Thermostat Premium, the Essential is an affordable way to bring a bit of smarts into your home -- including Apple HomeKit integration and vacation scheduling.

Ecobee designed the Smart Thermostat Essential to be easy to use, with a large full-color touchscreen display giving you quick access to your most-used controls. However, the big draw is its built-in intelligence, as the device will slowly learn how to optimize its settings for your specific home. For example, it can detect how long it takes to heat and cool your home, allowing it to build a routine that ensures you stay comfortable regardless of the temperature outside. When paired with Ecobee Smart Sensors, it’ll even track occupancy levels and adjust your settings accordingly.

Read more
Want smart lights for your home? Get this Nanoleaf Skylight bundle at $50 off
The Nanoleaf Skylight lighting up a room various shades of purple.

If you're thinking about installing smart lights in your home but you want something more than just simple smart light bulbs, you need to check out the Nanoleaf Skylight -- especially now that you can get it with a discount. A three-pack of the modular smart ceiling light usually sells for $250, but you can currently purchase it from Best Buy at $50 off so you'll only have to pay $200. With these savings, buying multiples of the bundle will be lighter on your wallet, but you're going to have to act fast because this deal expires at the end of the month.

Why you should buy the Nanoleaf Skylight
Smart lights can improve your home in a lot of ways by allowing you to control their LEDs through your smartphone or with the help of your preferred digital assistant. The Nanoleaf Skylight takes things further as it's a modular smart light that can be mounted flush to your ceiling. With its diffused multi-point lighting for even illumination with reduced shadowing, it can mimic the effect of the natural sky. The best part about the Nanoleaf Skylight is that you can install multiples -- it's possible to hard-wire the main controller panel with up to 99 additional squares.

Read more
The PeckPert Smart Bird Feeder is both inviting and squirrel-proof
The PeckPerk Smart Bird feeder blends in with the nature around it.

If you enjoy birdwatching, then you likely also have a strong vendetta against squirrels that enjoy birdseed as much as (if not more than) the birds do. The PeckPerk Smart Bird Feeder offers an easy way to watch birds in your area that isn't as vulnerable to squirrels, runs on solar power, and uses AI to identify every visitor to the feeder.

A 3W solar panel provides enough charge to keep this feeder going year-round and makes it so that you can place it anywhere in your yard, no power cord required. It also sports a 2K camera that streams directly to your phone, alongside an AI that can identify more than 11,000 different species of birds. It also has color night vision, so you'll get the full experience even on a new moon.

Read more