Rite-Hite’s BZH Blast Freezer Curtains offer a unique solution for food manufacturers and distributors that need to quickly bring foods to an optimal temperature to maintain their freshness, safety and integrity. The alternative to these relatively lightweight curtains, insulated panel doors, are commonly used to seal blast freezer openings that can be as large as 25’ x 25’. At this size, these doors can become very heavy and hard to open, which can cause people to use dangerous methods to open them.