About CrazyCap


Named one of Time magazine’s best 100 inventions for 2020, this portable steriliser means you can make your drinking water safe no matter what your water source. The integrated Deep UV LED sterilization built into the cap destroys bacteria, viruses and other pathogens.

With a capacity of 500mls, the bottle is self-cleaning and is also insulated, keeping drinks cold for 24 hours or hot for 12 hours. All bottles come with a 10-year warranty.


Filterless Sterilization

Designed for zero maintenance, CrazyCap bottles completely kill microbes and pathogens rather than just trapping them in a filter.

Portable Sterilization for any purpose

Not just useful for sterilizing water, you can use the cap to sterilize any surface, e.g. cutlery in a restaurant, a shared workspace, or even the keyboard on a desk computer.

Easy Recharging

The portless charger is safe and easy to use and a single charge the USB rechargeable battery lasts the up to one week. Use up to 500,000 times sterilizing over 235,000 liters of water.


Made from BPA-free and FDA-approved food-grade materials, the bottle keeps drinks cold for 24 hours and hot for 12 hours with a 304 stainless steel vacuum.