Traditional juice goes through pasteurization, the process of preservation that we are most familiar with, which involves high heat to kill any potential pathogens. Cold-pressed juice, on the other hand, goes through a process called High Pressure Processing (HPP).
Does cold-pressed juice need to be pasteurized?
"The cold-pressed process involves shredding fruits and vegetables and then compressing them between two plates at a very high pressure." While the pasteurization process is what helps kill potentially harmful bacteria in juice, the cold-pressing process gets the most liquid and nutrients out of the produce as possible
Is cold-pressed juice safe during pregnancy?
It's not safe to drink unpasteurized juice while you're pregnant, because it may contain harmful bacteria from the raw fruits and vegetables used to make the juice. These bacteria can cause food poisoning (illnesses such as listeriosis and toxoplasmosis), which can be especially dangerous during pregnancy.