What? Thermochromic inks on labels for glass beer bottles. The indication turns intense blue when the beer has reached the perfect consumption temperature (3-4º).
Where? On the market. Bought in online supermarkets (Hipercor, Eroski, Dia, etc).
When? Since 2013
More: Cruzcampo is the leader beer brand in the south of Spain. The perfect temperature in Spain of consuming is lower than other European countries which shows the importance of adaptation to the differents markets.