Arc Flash Boundary (ARC) - is the distance at which an electrical arc can flash. outward, which may endanger employees working on electrical equipment. Flash Protection Boundary (FPB) - theJcalculated safe working distance from. electrical equipment which would not expose the employee to the hazards.
One advantage of freeze drying is that food preserved in this method can last longer than food preserved in virtually any other way. Freeze dried foods, if stored properly, can last for years, even decades, and taste exactly as they did the day they were bought fresh.
A. Freeze Dried Food: The product remains frozen during the freeze-drying process, and as such the productâs cell structures do not change. Almost 100% of the water is removed during the freeze dry process, reducing the foodâs weight by about 90%. Freeze-drying is generally more expensive than dehydrating.