Blood plasma is particularly important for the pharmaceutical industry - because the yellowish-colored liquid component of the blood contains many proteins that are used to produce vital medicines that help with blood disorders, lung diseases or infectious diseases such as tetanus. The challenge: Blood plasma is extremly temperature-sensitive and must be shipped frozen - otherwise the protein content drops and the goods become worthless. In the past, such high-value cargo was mainly transported by air. Thanks to the reefer containers, this is now also possible by sea. The information graphic shows how Hapag-Lloyd ships blood plasma safely across the Atlantic.