To begin plasmapheresis, whole blood will be taken from your arm. The whole blood is then drawn by the automated machine into a centrifuge that spins, causing the plasma to separate from the red blood cells.
As long as 30 days. It will last longer in glass containers and in the refrigerator or a dark place but can be stored in plastic bottles because the alkaline water will not leach like R.O. or distilled water.
According to the results of several tests, storage at very cold temperatures will increase the shelf life, but only by a small amount. Alkaline models stored in a refrigerator can retain 93% of their power after five years, compared to 90% for non-refrigerated models stored in other cool, dry areas. The downsides of refrigeration for alkaline varieties may outweigh the minor extension in their shelf life.