Attention Coffee Lovers: Groundbreaking New Study Reveals a HUGE Difference Among Popular Coffee Shops

Some coffee chains have as much as four times more caffeine than others, a study conducted.

For example, a medium cappuccino at Costa contains a “massive” 325mg of caffeine which is around the amount contained in four cups of tea.

It is almost five times the strength of a cappuccino from Starbucks, which includes the least at 66mg.

Starbucks serves the least caffeinated coffee among the five largest coffee chains included in the study.

An espresso contains 33mg of caffeine, while a cappuccino has 66mg. Filter coffee has 102mg.

This chain might have the mildest coffee, but there are world famous for their festive-themed coffees, frappuccinos, and even coffee for dogs.

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