How to Clean and Charge a Hydrogen Water Bottle
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To clean a hydrogen water bottle, rinse it with clean water after each use, wipe the outside with a soft damp cloth, and let it air-dry with the cap off; to charge it, plug it into USB power and let it charge before your next cycle. That is the whole routine for the NuRich Echo Flask, a 420 ml rechargeable hydrogen water bottle that makes hydrogen water in about 3 minutes with SPE/PEM technology. Below are the steps, what to skip, and a few answers to common questions.
This post is about product care. It is not medical advice. Always follow the instructions that came in your Echo Flask box.
What you're cleaning: how a hydrogen water bottle is built
A hydrogen water bottle has two parts that need different care:
- The water chamber (the clear part you drink from). This holds the water. It can be rinsed.
- The base (the black bottom with the power button). This holds the rechargeable battery and the SPE/PEM cell that splits a small amount of water into hydrogen and oxygen. It is electronic, so it should stay dry on the outside and should never go under running water or into a sink full of water.

The U.S. Department of Energy describes PEM electrolysis as using electricity to split water into hydrogen and oxygen across a solid polymer membrane (DOE: Hydrogen Production: Electrolysis). The Echo Flask uses the same idea at a small scale. Our explainer What Is a Hydrogen Water Bottle and How Does It Work? covers it in more detail.
How to clean a hydrogen water bottle: after every use
- Empty it. Pour out any water left in the chamber. Don't leave water sitting in it for days.
- Rinse the chamber. Fill it partway with clean water, swirl, and pour it out. Repeat once or twice.
- Rinse the cap. Rinse the inside of the cap and its seal with clean water.
- Wipe the outside. Use a soft, damp cloth on the glass and the base. Keep the power button and the charging port dry.
- Air-dry with the cap off. Stand the bottle upright and leave the cap off until everything is dry, then put it away.
What not to do when cleaning it
- Don't put it in the dishwasher. The base is electronic.
- Don't submerge the base or hold it under the tap.
- Don't scrub inside with anything rough, like steel wool or abrasive pads.
- Don't run a cycle with anything but water in the chamber: no juice, coffee, drink mixes or sparkling drinks. If you want flavor, add it to your glass after.
- For deeper cleaning or descaling, use only what your Echo Flask instructions allow. We don't recommend any cleaning product that isn't in those instructions.
The Echo Flask listing says it works with purified, distilled and tap water. Our post on what water to start with walks through those options.
How to charge a hydrogen water bottle
The Echo Flask is USB-rechargeable. To charge it:
- Make sure the base is dry, including around the charging port.
- Plug the USB cable into the Echo Flask's charging port and into a USB power source, like a wall adapter, laptop or car USB port.
- Let it charge, then unplug it. Follow the charging time in your instructions.
- Use it. Fill the chamber with water, close the cap and press the one button to start a cycle of about 3 minutes.
Charging tips that apply to most rechargeable devices: charge it on a dry, flat surface, keep it away from the sink while it's plugged in, and don't leave it in a hot car. For more, see the Echo Flask battery and charging FAQ.
A simple daily routine
- Morning: fill with water, press the button, wait about 3 minutes, drink.
- After you finish: empty, rinse, cap off to dry.
- When the charge runs low: plug it into USB power.
Get the NuRich Echo Flask
The NuRich Echo Flask hydrogen water bottle holds 420 ml, makes hydrogen water in about 3 minutes with SPE/PEM technology, runs on one button and recharges over USB. It is $29.99.
FAQ
Can you put a hydrogen water bottle in the dishwasher?
No. The Echo Flask has an electronic base with a battery, so it should not go in the dishwasher or under water. Rinse the chamber by hand and wipe the base with a damp cloth.
How do you clean the inside of a hydrogen water bottle?
Empty it, rinse the chamber with clean water a couple of times, and let it air-dry with the cap off. For descaling or a deeper clean, use only the method in your product instructions.
How do you charge the Echo Flask?
Dry the base, plug the USB cable into the charging port and a USB power source, and let it charge. Follow the charging time in your instructions.
Can I use tap water in a hydrogen water bottle?
The Echo Flask listing says it works with purified, distilled and tap water.
Can I put juice or coffee in it?
No. Only put water in the chamber when you run a cycle. Add anything else to your glass afterward.
Written by the NuRich team in Winder, GA. We cite primary sources and only state what's on our product listings.
The NuRich team · Clean water for everyone.
This article is for general product-care information and is not medical advice.