Freeze dried balls are a popular feature in the IVD in vitro diagnostic industry. Unlike freeze-dried powder and blocks, it is a new type of vacuum freeze-drying technology that involves mixing active biological reagents and freezing them into small balls of the required volume, size, and weight in liquid nitrogen using a Gickel liquid nitrogen point freezing machine. The balls are then subjected to vacuum freeze-drying processing by the freeze-drying machine to obtain smooth spheres - freeze-dried balls. Processed by freeze-drying equipment include collagen freeze-dried balls, peptide freeze-dried balls, etc.

Freeze dried balls, also known as freeze-drying beads or liquid nitrogen droplets, refer to the process of transferring reagents/medicines into liquid nitrogen using a professional precision ceramic micro pump. Under the action of low-temperature liquid nitrogen, they are quickly frozen into small solid spheres with uniform and regular shapes, which are then collected and stored in Xinyu freeze-drying equipment for freezing. Freeze dried bead technology can maintain the activity of enzymes/proteins, and the freeze-dried beads have a loose mesh structure, which allows for rapid reconstitution. Freeze dried bead technology can convert unstable chemical reagents into high-quality, stable, and quantitative freeze-dried bead beads, which is particularly convenient for the storage and transportation of drugs and is a popular technology.