Sparkolloid is a product used in the wine-making process to clarify the wine and remove impurities. The addition of sparkolloid increases the wine's acidity by 0.1%. This product is designed to clarify the wine while preserving its aroma, body, and flavour. After bentonite or carbon fining, sparkolloid can also be used to help compact the lees, the solid particles that settle at the bottom of the wine.