AQUA WATER Diamond Cut Leak Proof Loop Cap Made Of Stainless Steel And Provides Good Grip Can Be Used For Any Occasion Like Hiking, Cycling, Camping, Gym, School Or Home Fridge Bottle. 100% Food grade, BPA Free, Rust Free, Diamond Cut design, Easy to clean, durable and Best for daily use and Travelling Use Mild Soap to clean the bottle. Always Dry wipe bottle and keep open when not in use.Made from high-quality stainless steel, each bottle is sturdy, long-lasting, rust-proof, and unbreakable and will last for years to come.This Bottle would make a great Gift for Birthday or special occasion or for an active person in your life. For everyday use, fill the bottle with lukewarm water and use a pinch of dishwasher soap. Rinse bottle thoroughly with the liquid. Be sure to clean the cap and the lip of the bottle too. 2) If you are getting a pungent smell or if the bottle has been neglected for too long, it is time for a more thorough cleaning. OR Vinegar is a fantastic natural cleaning agent that will help to disinfect and sanitise your bottle. Fill the bottle with equal parts water and vinegar. Put the lid on and give the bottle a few good shakes, swirling the mixture around. Let it soak overnight and then rinse out with warm water the next day.