Do you know the secret at the bottom of a wine bottle?

The role of glass wine bottle concave bottom

The appearance of the base of a wine bottle is primarily influenced by several factors:

1. The design of a wine bottle with a concave bottom enhances its durability against impacts. Unlike flat-bottomed bottles, which are more susceptible to damage, the concave base offers greater structural integrity, significantly lowering the risk of breakage from collisions.

2. The consistent surface created by the concave design increases the bottle's stability when it is upright.

3. Additionally, the concave bottom minimizes the internal capacity of the bottle, giving it a more elegant and refined appearance.

What is the role of the bottom of the glass wine bottle?

The groove found at the bottom of a glass wine bottle serves a significant purpose, primarily aiding in the collection of sediment. This feature is especially important for early wine producers who lacked advanced low-temperature crystallization methods. During the initial stages of winemaking, techniques were relatively primitive; after fermentation, a wooden mesh filter was employed to separate solid residues and skins from the liquid. The groove allows sediment and tannin crystals to settle when the bottle is upright, minimizing impurities in high-quality wines. Typically, bottles designed for longer storage will have a deeper groove to accommodate this sedimentation process.

The grooves on the wine bottle facilitate the alcoholization process by making it simpler to handle. Additionally, these grooves enhance the bottle's ability to be rotated. Early-stage wine requires regular rolling—typically achieved by placing a roller in the groove at the bottom of the bottle and rotating it in circular motions of 20-30 degrees two to three times daily. This practice helps interact with the fermenting liquor, often referred to in Western countries as awakening wines from their slumber. Consequently, these grooves provide an ideal spot for inserting the roller.

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