In the late 1980s, Walter Fortunato designed and built the stopper sealing system that has made Waf famous throughout the world. The Block Waf System© still represents the most ingenious invention for preserving the precious characteristics of newly uncorked sparkling wines over time. The patent, applied in many items in the stoppers line, follows Pascal's principle that pressure exerted on a fluid is transmitted in all directions with equal intensity. By applying Pascal's principle to the bottle, the elastic teat goes to adhere to the inner wall of the mouthpiece. The head gasket with which the teat is fitted tends to rest against the top edge of the bottle, creating an initial obstacle to the escape of carbon dioxide. The carbon dioxide, again due to Pascal's principle, enters the teat through the hole below and as the pressure increases it goes to expand against the glass wall thus creating a state of overpressure inside. The external fixing bracket is designed to counteract the vertical thrust that the stopper receives and thus ensures its tightness, which has been tested up to 6 atmospheres.

Equipped with -Block WAF SYSTEM © with certified seal over 6 ATM.

MATERIAL: High-carbon chrome-plated steel. Plastics certified for food contact

COLOR: Gold

SIZE: 4.5 x 4.0 x 6.2 cm

WASH: By hand, do not use abrasive sponges and/or detergents.