Sisu cough drops made in the Seres factory in Turku became available in stores in 1928. Their recipe was developed by chemist Johan Ponkamo who wanted to create a Finnish product to compete with imported Swedish candies. Ponkamo spent a long time looking for the perfect way to combine licorice and gum arabic. The exact consistency of the unique aroma is still a closely guarded business secret. Sisu as a concept is difficult to translate: it can mean perseverance, guts, grit, spunk and stamina. The cough drops were recommended for speakers, singers and smokers.
Sisu cough drops made in the Seres factory in Turku became available in stores in 1928. Their recipe was developed by chemist Johan Ponkamo who wanted to create a Finnish product to compete with imported Swedish candies. Ponkamo spent a long time looking for the perfect way to combine licorice and gum arabic. The exact consistency of the unique aroma is still a closely guarded business secret. Sisu as a concept is difficult to translate: it can mean perseverance, guts, grit, spunk and stamina. The cough drops were recommended for speakers, singers and smokers.