PDV salt, or Pure Dried Vacuum salt, is a highly pure, refined, and free-flowing white salt produced by evaporating purified brine under a vacuum. It is widely used in the food industry for seasoning and preservation, for water softening and treatment, in the manufacturing of animal feed and chemicals, and for health applications such as treating fish in ponds.

How it's made and its characteristics:

Vacuum evaporation:

 Purified brine (saltwater) is placed under vacuum, lowering the boiling point and allowing it to evaporate at a lower temperature, which prevents impurities from being left behind.

Pure and free-flowing:

This process removes trace elements and other impurities, leaving behind a high-purity, fine-grained, white salt that flows easily.

Consistent grain size:

The vacuum crystallisation process produces consistently sized particles, making it suitable for various applications where consistent flow is important.

Common applications:
Food industry: Used for seasoning, food preservation, curing meats, and in baking. 

Water treatment: Ideal for both domestic and industrial water softeners to remove hardness.

Animal feed: Provides essential nutrition for animals.

Industrial processes: Used in the manufacture of chemicals, dyes, and textiles.

Pond health: Can be used to treat fish parasites, protect fish from illness, and manage nitrite levels in ponds and pools.