Star San Sanitizer - No-Rinse Sanitizer for Homebrewing & Winemaking

Sanitize with confidence using Star San™ by Five Star Chemicals—the no-rinse, acid-based sanitizer trusted by homebrewers, winemakers, and pros alike. Often referred to as starsan, it’s a staple in fermentation sanitizing. No-Rinse Formula: Just 1 oz per 5 gallons of water—sanitize in 1 to 2 minutes. Food-Grade & Safe: Made with food-grade phosphoric acid, biodegradable, and septic-safe. Self-Foaming Action: Helps penetrate nooks, crannies, and hard-to-reach spots. Flavorless & Odorless: Won’t affect the taste or aroma of beer, wine, or cider. Flexible Use: Soak gear or spray directly (wear gloves when handling concentrate). Long-Lasting: Reusable up to 3–4 weeks when stored in a sealed container (pH 3.0 or lower). Star San is safe for most surfaces but should be used with care on soft metals, rubber, and plastic due to its acidic nature. ⚠️ Cannot ship via air. Ground shipping only. NOTE: Star San is not listed as an EPA-approved disinfectant for COVID-19. For virus disinfection, refer to the EPA’s recommended list here. Frequently Asked Questions about Star San What is Star San? Star San is a no-rinse, acid-based sanitizer used by brewers, winemakers, and fermenters to sanitize equipment before use. Do I need to rinse after using Star San? No. When used at the recommended dilution of 1 oz per 5 gallons, Star San does not need to be rinsed off. Let items air dry or use wet. Can I use Star San in a spray bottle? Yes. Star San works extremely well as a spray sanitizer. Mix a small batch and store it in a labeled spray bottle for quick sanitizing. How long does a Star San solution last? Star San remains effective for 3–4 weeks when stored in a sealed container and the pH stays at 3.0 or lower. If the solution turns cloudy, replace it. Is Star San safe for plastic, stainless steel, and rubber? Star San is generally safe for plastic and stainless steel. Prolonged exposure to rubber or soft metals should be minimized due to its acidity. California Proposition 65 ⚠ Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.