EAU GOOD GLASS - Lime

• Lime: EGG-002
• It makes tap water taste great!
• Hand-blown glass, wood fibre + polypropylene lid with silicone (BPA Free) seal, premium stainless steel 304 (18/8)
• Includes a recycled polyester sleeve for bottle protection and insulation
• Includes stainless steel coil
• Includes x1 binchotan active charcoal filter (6 months life)

What is the history of Binchotan charcoal?

Binchotan charcoal, which is often referred to as ‘white charcoal’, has a rich history, although it’s origins are not totally clear. It was thought to have been introduced to Japan by a scholar called Kukai, and a monk, about 1,200 years ago. It wasn’t until the 17th century that it became popular, thanks to a man named Binchuya Chozaemon.



How is it made?

Making Binchotan charcoal requires a very fast rise in temperature, and then rapid cooling, which leaves a hard and smooth surface. If you tap it, you’ll hear a clear, metallic sound. The process to do this involves taking sustainably sourced wood, and charring it at a low temperature in a kiln for a long time. Just before it’s finished, the temperature suddenly is increased to about 1000°C until the wood is red hot. A special powder is created from earth, ash and sand, and this is used to quickly cover the charcoal once it’s removed from the kiln. This process is what gives the charcoal a white hue (which is why it’s sometimes referred to as ‘white charcoal’).



How does it work?

It has a very porous surface with tiny holes (or cavities) throughout the material. These tiny holes attract contaminants like chlorine and hold them to the surface of the charcoal, and therefore away from the water you drink. It also releases minerals like magnesium and iron into the water.



How much water can each charcoal filter?

One stick of Binchotan charcoal can filter about 1.1L of water, if used every day for 3 months. Just scale up or down depending on the volume of water you’d like to filter.



How long will it last?

About 3 months if you use it every day with our ‘Eau Good’ range. You can then boil it for 10 minutes to ‘recharge’ it, make sure you leave to dry in the sunlight. This recharging will make your charcoal last another 3 months.



What other uses does the binchotan have?

Binchotan has lots of secondary uses after it’s finished as a water filter: it adds nutrients to the soil of houseplants (simply break it up and add to the pot), you can use it to deodorise a laundry basket, cat litter or shoes, it even can absorb moisture from the air, acting as a great dehumidifier in your wardrobe.



Do I need to wash my charcoal?

No, it’s ready to use straight out of the packaging.



Can I use my binchotan with flavoured water (fruit infused or tea)?

No, do not use anything to flavour your water with the Binchotan charcoal.



Can I wash my bottle with soap and leave the charcoal in it?

Make sure you remove the charcoal stick before washing your bottle with soap.



Where can I order more charcoal from?

You can buy more charcoal directly from our website, please see the Accessories page.



Is it dangerous if I swallow a bit of charcoal?

No, swallowing small pieces of charcoal will not be harmful. Sometimes small particles or fragments may break off your charcoal stick and float in your water, you can simply rinse these out, but it will not be dangerous if you swallow them.



What’s the best way to clean my bottle?

We recommend washing your bottle with a bottle brush and hot, soapy water regularly. You can also put the bottle in the dishwasher. The lid is not dishwasher safe, but the silicone seal is dishwasher safe and is easy to remove for thorough cleaning.