To promote Grolsch 0.0% Radler as a refreshing non-alcoholic beer beverage and a satisfying alternative to soda, Grolsh launched a unique set of posters with lemon juice on paper.
As the alcohol-free beverage is made with water, yeast, malt and hops that are combined with real lemon juice, Grolsch decided to highlight this key feature with a standout print campaign—Grolsch worked with Fitzroy on creating posters made with real lemon juice. Since lemon juice can be used to make invisible ink drawings or messages on paper, the process called for the posters to be ironed to make the contents visible.
Many artists, designers and creators around the world are now exploring the use of alternative printing inks, such as ones made with city pollutants, algae, insects or even fresh fruits and vegetables.
Citrus Ink Posters
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