What's the difference between the dregs of old wine and the dregs of New Year wine?

1

Tartaric acid tartrate

Completely non-toxic and harmless, and can be directly drunk.

Common in: cork bottom and bottle bottom, colorless, odorless, nontoxic and harmless. This is more common in wines that are aged for a long time. White wine is white crystal, and red wine is purplish red or black crystal.

Cause of formation: Tartaric acid is a natural component in grape fruit, which will form crystals at low temperature. In order not to confuse consumers, some wineries will adopt low-temperature precipitation technology, and then bottle the wine to prevent tartaric acid crystallization. Of course, some winemakers object to this method on the grounds that it may also filter out many flavor substances.

2

Old wine residue

Precipitation produced by the combination of pigment tannins in aged wine

Common in: aged wine.

Reason: Although the wine has gone through the processes of deslagging and filtering before bottling, the residue in the wine can not be completely removed. After a long period of standing, the tannic acid in the wine slowly polymerized and precipitated, becoming the old wine residue at the bottom of the bottle we saw.

Solution: Use a decanter, and be careful not to let the wine residue pour into the decanter.

three

Stir the distiller's grains with wine paste

Sur distiller's grains are usually common in muscat wine. The word "distiller's grains" refers to the dead yeast that sinks to the bottom of the fermentation container, while "Sur Lees" refers to the sediment on the surface of wine. Therefore, when the wine jar appears, the winemaker will constantly stir the wine to enrich the taste of the wine. In addition, aged sparkling wine is also prone to wine trough.

Whether crystallization or precipitation is a normal phenomenon for wine, it can even be said that it is an inevitable phenomenon in brewing wine. It is a solid substance formed by the polymerization or condensation of natural substances in wine due to time or temperature problems. Will not affect the taste, not to mention health, and can be safely drunk.