Tre Spade vacuum bottle stopper. Necessary accessory to make the vacuum using the Tre Spade vacuum sealer or the Tre Spade manual vacuum pump. The stopper for vacuum packaging allows wine, oil, vinegar or other non-gaseous liquids to be optimally preserved for longer, since by extracting the air from the space that remains inside the bottle we avoid oxidation due to contact of oxygen with the liquid. Removing the air from the bottles by vacuum packaging allows you to preserve and maintain the flavor and nutritional properties of liquids or beverages. This cap fits most standard size bottles and thanks to its hermetic closure it also allows liquids to be preserved from unpleasant odours. It is the perfect substitute for corks. It can be used with the Takaje, Deluxe or Wendy Premium vacuum sealer. The vacuum can also be done manually with the manual vacuum pump and with other brands of packaging machines. Airtight and smell proof. Fits most bottles. Do not use for carbonated drinks, the vacuum will cause them to lose gas. Do not use with plastic bottles. It can be washed in the dishwasher without the valve. Check that the cap fits the bottle, if it does not fit well, air can enter and it will not make a good vacuum. With vacuum packaging machines: place the suction accessory or cannula of the packaging machine on the cap. Start the packaging machine and make the vacuum. With manual vacuum pump: place on the bottle cap and pump.