Caro (drink) followed by Nestlé
Caro is a brand of roasted grain drink, a caffeine-free coffee substitute made of roasted barley, malted barley, chicory, and rye. It is manufactured by Nestlé and was first introduced in West Germany in 1954. It is available throughout Europe as well as other markets including New Zealand and Australia. It is imported to the United States under the name Pero and sold in Spain as Eko. 
Caro is available as an instant powder or as Caro Extra in granulated form. The name "Caro" references the German word "Karo", the term for the diamonds playing card suit, as seen in stylized form in the product logos used in Germany and the United States, and in the Spanish product until the early 2000 when the branding was restyled.