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.
Drying, arguably the oldest food preservation method, is a great way of preserving herbs, fruits, vegetables and meats. Since the beginning of time people have let sun and nature take care of drawing moisture out of foods. This practice is used throughout the world.