Wine is usually referred to as a cap, or Capsule, which is the cap on the top of the bottle that covers and wraps around the mouth of the bottle.
When it comes to winemaking, a cap has a different meaning.
It refers to the PomCap that floats above the wine during fermentation.
In the process of red wine production, alcohol fermentation will produce carbon dioxide, carbon dioxide will cause the grape skin and other solid materials to float above the wine, forming a thick skin residue cap.
Through appropriate methods to improve the contact degree between the skin residue and the liquid part, the pigment and tannin in the skin residue and other substances are extracted into the liquor, which is called Cap Management.
Therefore, if only said the packaging layer, “wine cap” refers to the top of the bottle wrapped around the mouth of the bottle seal or bottle cap;
And if it comes to the wine brewing process, “wine cap” refers to the wine fermentation of the leather slag cap.
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