As a leading provider of performance hydration, any issue with our product is taken seriously. Since 2001, our products have been made with a food-grade Thermoplastic Polyurethane (TPU) material that is safe, reliable and non toxic. TPU is used and recognized by many of our competitors and is an industry standard for its food-safe properties and its durability. It’s 100% BPA and PVC free: every one of our products meets or exceeds the most rigorous national food safety standards in the world. 

Although TPU is a safe material, there is a small percentage of consumers that experience an unpleasant taste when using their flask or reservoirs.

In order to address this inconvenience, we gathered a few options that have worked for us and our customers.

Option 1: Fill the vessel with water and add a few drops of lemon juice (about 1 teaspoon). Place the vessel in the freezer and allow it to freeze completely overnight. Once frozen, remove the vessel and allow it to thaw out completely. Pour the lemon water out and rinse. This should diminish the taste.

Option 2: Fill the vessel up with milk (powdered milk works as well) and place it into the refrigerator for 24 hours. Then completely clean and dry the vessel.

Option 3: Use 1 or more Bottle Bright tablets (depending on how large your vessel is) and soak it with warm water for 30+ minutes. Empty and rinse the reservoir or vessel, scrubbing it with a bristle brush. Rinse once more, completely and let dry fully prior to using.

Option 4: For those that are extra sensitive to taste, we recommend using a drop or two of lemon juice in the reservoir or container during activity. 

If these solutions do not work for you, please let us know and we will be happy to send you a replacement. Please file a warranty claim here.