The high street coffee chains with 'huge’ differences in amounts of caffeine

Sangita Lal spills the beans on which high street coffee chains are using the most caffeine in their cups

There is a “huge” differences in the amount of caffeine in coffees served by high street chains, leaving customers with little idea how much they are consuming, a study has found.

A medium cappuccino at Costa contains almost five times the amount of caffeine as the same drink from Starbucks, the Which? study found.

A medium Costa cappuccino contains a “massive” 325mg of caffeine, which is equivalent to four cups of tea.

Whereas a cappuccino from Starbucks has 66mg - the least of all High Street brands, Which? found.

The same drink from Greggs and Pret a Manger also contain significantly less caffeine than Costa, as 197mg and 180mg respectively.

By comparison, a 250ml can of Red Bull contains 80mg of caffeine,

A single espresso from Pret a Manger contains 180mg of caffeine, six times as much as one from Starbucks which had a “meagre” 33mg by comparison, according to the watchdog’s findings.

Pret’s filter coffee also contained the most caffeine at 271mg, two and a half times as much as the Starbucks version, which contained 102mg.

Greggs was a close second to Pret for its caffeine levels, containing 225mg in a cup of filter coffee.

Caffè Nero had the second lowest levels of caffeine after Starbucks in both its cappuccinos – containing between 110mg and 115mg – and its espresso, with 45mg.

The findings show buying coffee on the high street could be potentially problematic for consumers who are sensitive to caffeine, or are pregnant.

The NHS says pregnant women should consume no more than 200mg of caffeine per day, advising that a mug of instant coffee contains 100mg and a mug of filter coffee contains 140mg.

The variations are due to the number of caffeine shots used across the chains.

Whether shops use Arabica or Robusta coffee beans also makes a big difference to the caffeine levels.

Arabica beans contain around half the caffeine of Robusta beans, and the two taste a little different.

Which? nutritionist Shefalee Loth said: “Many of us rely on coffee to get us through the dark winter mornings, but our research shows you may be consuming significantly more, or less, caffeine than you bargained for.

“Most of the time this shouldn’t be an issue but if you drink a lot of coffee or need to limit your caffeine intake you might want to consider what you’re ordering and where from.”

A Costa Coffee spokeswoman said: “The amount of caffeine included within each coffee varies, depending on both the coffee and size of drink ordered by a customer.

“All Costa coffees can be enjoyed with decaf coffee and we offer a wide range of non-caffeinated drinks including the FuzeTea Superfuzions range.

“All caffeine information is available both in our store or via our website and we would encourage customers to be aware of the caffeine content in their favourite Costa coffee to ensure it is right for their dietary requirements or lifestyle choice.”

Pret a Manger declined to comment.

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