A man proved a large cup of Costa coffee fits into a regular cup and everyone went cray, even Costa

Large Costa Coffee into regular cup .

Builder's video showing large Costa Coffee fitting in regular cup goes viral

Costa “Fortune” – Coffee chain accused of “ripping off” customers after video emerges showing “large measurement fitting into medium cup”

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Transphobes outraged over trans man on British coffee shop chain's mural

Disgruntled Costa customer shows how a large coffee fits into regular sized cup

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Man demonstrates large Costa coffee fitting into medium-size cup

How much coffee is it healthy to drink on a daily basis? - Quora