What is the significance of sediment in wine and how does it affect the taste and quality of the wine?

Sediment in wine is made up of particles like grape skins and yeast that settle at the bottom of the bottle over time. While some sediment is normal and harmless, excessive sediment can affect the taste and quality of the wine by making it taste gritty or bitter. Winemakers often filter or decant wine to remove sediment and improve its overall flavor and clarity.