Which of the following spirits undergoes chill filtration to avoid appearing hazy?

Chill filtration is a process used primarily to remove particulate matter and oils from spirits, ensuring that they remain clear and free from haziness when exposed to cold temperatures. Vodka is especially known for this process, as its production often aims for a highly purified and neutral spirit, which is typically desired by consumers.

When vodka is chilled, any fatty acids or oils present in the mixture can cause cloudiness. To prevent this, vodka is chill-filtered, which removes these components and helps maintain clarity, even when served cold. This process enhances the overall presentation and quality of vodka, making it more appealing to drinkers who expect a clean, crisp appearance.

While gin and whiskey may also undergo filtration processes, they are not specifically associated with chill filtration to the same extent that vodka is. Gin typically contains botanicals that contribute to its flavor and may not require the same level of clarity, while whiskey often uses maturation in barrels, which impacts its character and clarity differently. Therefore, vodka stands out as the spirit most commonly associated with chill filtration aimed at avoiding haze.