- Q & A
Using fractional distillation to separate and remove oxygen and impurities, the Private Preserve replaces the harmful air in a bottle of wine with a completely safe mixture of nitrogen, carbon dioxide, and argon blend to prevent further oxidation. An inexpensive and environmentally safe way to keep that open bottle of wine at its freshest. Private Preserve includes a straw for exact spraying. One can preserves approximately 120 bottles of wine.