Grolsch = cool

Or should I say ‘Koel’? Starting summer 2009 Grolsch has introduced the new ‘Koel-meter’ on their beer cans in the Netherlands, using a recently developed Thermochromic ink. This temperature sensitive ink, which has been developed in partnership with Rexam, indicates when the beer inside has reached the perfect drinking temperature. The ink, which begins to […]

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