the product softening of acerb tannins,weaken the taste of sulphur dioxide,revived grape fruit aroma,homogenizing wine molecules,chilled wine tastes good. allows the ice surface to come into contact with the wine over a large area,chilling it from the inside.the caps and connectors are made of food grade 304 stainless steel.tested by national authorities.up and down decanting flow,stunning visual effect,can quickly decanting. the jisite chilled wine decanter,can quickly chill the wine and keep it fresh and refreshing for a longer period of time ,with a long aftertaste and afine,subtle finish..syi