What is healthier, coffee or tea?
There's a reason the "tea or coffee?" question comes up every single morning in households across the UK. Both drinks wake us up, both have thousands of years of culture behind them, and both come with genuine health research to back them up — but they don't work the same way in your body.

How Much Caffeine Is Actually in Tea vs Coffee?

Coffee is the stronger of the two by a clear margin. A standard cup of brewed coffee typically delivers somewhere between 80mg and 200mg of caffeine, depending on the bean, the roast, and how it's prepared. Tea, by comparison, generally contains between 40mg and 120mg of caffeine per cup — black tea sits at the higher end, while green and white teas tend to sit lower.

☕ Coffee 80mg – 200mg

🍵 Tea 40mg – 120mg

0mg 250mg per cup

The UK's Food Standards Agency advises that caffeine intakes of up to 400mg per day are unlikely to cause adverse effects in healthy adults, with a lower 200mg limit recommended during pregnancy.

Why Tea Feels Different, Even With Caffeine in Both

Tea contains an amino acid called L-theanine, which coffee doesn't have. It works alongside caffeine rather than against it, and the combination is widely associated with a calmer, more sustained sense of focus rather than the sharper, faster spike that coffee tends to produce. If you've ever felt jittery after coffee but never after tea, this is likely why.

Health Benefits, Side by Side

Both drinks have been studied extensively, and both come with real, evidence-backed benefits.

Antioxidants

Both are rich in polyphenols, compounds linked to reduced inflammation and long-term cell protection.

Heart Health

Large studies associate regular tea and coffee drinking with lower risk of heart disease and stroke.

Green Tea's EGCG

A catechin of particular research interest for supporting metabolism and cardiovascular health.

Coffee & Diabetes Risk

Associated with a reduced risk of type 2 diabetes in several long-term studies.

Longevity

Some of the largest studies on the topic link both regular coffee and tea drinking to lower all-cause mortality over time — though researchers note this is an association, not proof, since regular tea and coffee drinkers often share other healthy habits too.

According to Harvard Health, both drinks owe much of this benefit to their polyphenol content, with regular coffee drinking specifically linked to lower rates of heart disease, type 2 diabetes, and a longer lifespan overall.

A Brief History of Two Very Different Journeys

2,000+ Years Old

Tea

Originates in China, eventually becoming so central to British life that it's now almost synonymous with the UK. It still edges out coffee in global consumption, trailing only water in overall volume.

15th Century

Coffee

Traced back to the Arabian Peninsula, spreading through the Middle East before reaching Europe in the 1600s and 1700s — considerably later than tea's arrival in British culture.

So, Which Should You Choose?

Honestly — you don't have to choose at all. Most people naturally gravitate toward coffee for a stronger morning start and tea for a calmer wind-down, and there's good physiological reasoning behind that instinct.

Sensitive to caffeine? Lean toward green or white tea.
Want maximum alertness with minimum fuss? Coffee is hard to beat.
Enjoy the ritual of both? There's no reason not to keep a well-stocked cupboard of each.

Explore the Full Series

Every question this guide touches on, covered in depth.

Tea Deep Dives

Does Green Tea Have Less Caffeine Than Coffee? Best Tea for Morning Energy English Breakfast vs Earl Grey How to Brew Loose Leaf Tea Properly Why Does My Tea Taste Bitter? How Much Caffeine Is in Black Tea? Best Caffeine-Free Herbal Tea for Evening Best UK Tea Brands for Loose Leaf The Perfect Cup of Tea (UK Style) Tea Bags vs Loose Leaf Best Flavoured Tea for Gifts

Coffee Deep Dives

Arabica vs Robusta: The Difference How Long Does Ground Coffee Stay Fresh? Best Coffee Beans for French Press How to Store Coffee Beans Is Instant Coffee Bad for You? How to Make Cold Brew at Home

The Bigger Picture

What Does Fairtrade Actually Mean? Decaf Coffee vs Decaf Tea

Explore Our Tea & Coffee Range

From everyday English Breakfast to freshly roasted single-origin Arabica beans, find everything you need to stock a cupboard that covers both.

Shop Tea & Coffee

Frequently Asked Questions

Does decaf tea or decaf coffee still contain any caffeine?
Yes, both decaffeinated tea and decaffeinated coffee retain a small trace of caffeine after processing — typically around 2 to 5mg per cup, compared to the much higher levels in regular versions. This is negligible for most people but worth knowing if you're avoiding caffeine entirely.
Can drinking tea instead of coffee help with anxiety?
Some people find that switching from coffee to tea reduces feelings of jitteriness, likely due to tea's combination of lower caffeine and the calming effect of L-theanine. However, everyone responds to caffeine differently, so this isn't a guaranteed fix and shouldn't replace advice from a healthcare professional if anxiety is a persistent concern.
Is it bad to drink both tea and coffee in the same day?
No, there's nothing inherently wrong with drinking both in the same day, as long as your total caffeine intake stays within generally recommended limits. Many people naturally have coffee earlier and tea later without any issue.
Why does coffee affect some people more than others?
Caffeine sensitivity varies significantly from person to person due to genetics, body weight, tolerance built up over time, and how quickly an individual's liver metabolises caffeine. This is why two people can drink the exact same coffee and have very different experiences.
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