Our Hyda-tune bottles contain frequencies that create structured water which means the molecules are arranged in cohesive hexagonal form. Why is this important? Natural spring water that comes straight out of the Earth is also structurally the same. It is natural, safe, and has many benefits. -Purifies and Neutralizes toxins in your body. -Increases liquid and nutrient absorption rate, getting and keeping you more hydrated which helps with energy levels, muscle contractions, ect. -Helps with acid reflux and IBS. -Much more. You can put any liquid in the bottle (Hot or cold) and the frequencies will have been absorbed into the water within 60 seconds. Do not put carbonated beverages in the bottle, as the frequencies will cause the carbonation to go flat. Our Hydra-tune bottle is NOT dishwasher safe. To ensure craftsmanship of the bottle, please only hand wash. The Body Tune Hyda-tune Bottle also comes with a tea steep in the top of the lid. If you don’t use this for tea, don’t throw it out! Put it in a pitcher or water filter pitcher in your fridge so it can also tune other beverages for you!