Looking for the perfect water to brew your coffee? You finally found it. Just add one Third Wave Water stick for your favorite coffee profile to distilled or RO water, shake, and brew. Your coffee has never tasted so good! Filtered water or even great tasting water can flatten your coffee and won't help your coffee taste amazing. The science behind brewing coffee is complicated and requires the right minerals, water buffer and more to create that perfect cup of coffee. Each Pack contains 12 sticks intended to mineralize 12 gallons of distilled or ROS water. Classic/Light Roast: The Classic Profile was created to meet the earlier SCAA water requirements with 10 mg of sodium chloride, ~40 TDS/kH of alkalinity and 150 TDS (total dissolvable solids). Primary uses: Pour Overs, Batch Brewers, and Cold Brew. Medium Roast: The Medium Profile meets the SCA water requirements, ~70 TDS/kH of alkalinity and 150 TDS (total dissolvable solids). Primary uses: Medium Roast Profiles, Cupping Protocols, Pour Overs, Batch Brewers, and Cold Brew. Dark Roast: The Dark Roast Profile was created to help dark roast coffees taste their best. Contains ~137 TDS/kH of alkalinity and 180 TDS (total dissolvable solids). Primary uses: Espresso Machines, Super-automatics, Batch Brewers, and Drip Coffee Makers. Espresso Machine: The Espresso Profile was created to meet the later SCA water requirements while simultaneously protecting espresso machine boilers. Contains ~80 TDS/kH of alkalinity and 150 TDS (total dissolvable solids). Primary uses: Espresso Machines, Super-automatics, Batch Brewers, and Pour Overs. All minerals are permanent hardness and helps protect your coffee brewing equipment, which is included in total hardness. Check out Red Rooster's amazing Grace as she examines the impact of water on your coffee brew on our YouTube Channel. Read Third Wave's whitepaper on the importance of water quality here. MADE IN THE USA - Makes 12 gallons of optimal coffee brewing water for maximum flavor. MINERALLY ENHANCED- Magnesium for added sweetness and Calcium for a balanced body that we’re sure you will appreciate. AS SEEN ON SHARK TANK - 5 out of 5 Sharks preferred Third Wave Water over tap water. WORKS WITH ALL MACHINES- The perfect addition to any type of coffee maker. Not recommended for those with hypersensitivities to magnesium sulfate. If you experience any stomach aches, discontinue use.