Chr. Hansen recently introduced L. Casei 431 Juice, a probiotic developed to survive in low pH environments such as chilled juice and juice drinks.L. Casei 431 Juice contains Lactobacillus paracasei 431. This probiotic strain has scientific documentation as well as a history of use in yogurt and dietary supplement products. According to the company, L. Casei 431 Juice has no side effects in the beverage such as unpleasant off-flavor or gas formation. To tackle traditional production risks associated with adding live probiotic bacteria to juice after pasteurization Chr. Hansen teamed up with Swedish processing and food safety expert Tetra Pak. Together Tetra Pak and Chr. Hansen has developed a unique inoculation system which guarantees safe production of probiotic juice.