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.
4. Process the food for freeze drying. Get the food ready to be preserved by doing the following: 1  If applicable, wash and dry the food thoroughly. 2  Slice the food into small pieces. 3  Cut apples, peppers, potatoes and other fruit and vegetables into small chunks, so that the moisture is easily removed.