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.
Freeze-drying, or lyophilization, is like âsuspended animationâ for food. In this process, fresh or cooked food is rapidly frozen and placed in a vacuum. The finished product is substantially lighter and more compact, making it a great option of lightweight backpackers. Virtually any food item and ingredient can be freeze-dried. To do this however, specialized equipment is required, making it a costly option.