| by Dan Black
Water infusion has been hotting up the health and wellbeing industry for a while now, with a range of infusion and filter water bottles on offer. In recent years, more and more people are turning up the tempo by using activated charcoal as a way of filtering and infusing their water.
Not to be confused with the stuff you put on your barbeque, activated charcoal has a wide range of reported health benefits. It is also one of the most effective ways of removing water impurities such as chlorine, which is commonly found in tap water.
Activated charcoal consists of a substance - usually wood, coal, coconut shell or bamboo - which has been burned without oxygen to create char. This is then heated to a high temperature and exposed to certain gases. The multi-step process makes it extremely porous, this is what we refer to when we say ‘activated’.
Once the charcoal has been activated, the increased surface area can bind to any substance. It acts as a powerful magnet, adsorbing any toxic molecules it comes into contact with. Adsorption, not to be confused with absorption, is when molecules are drawn to the surface of the adsorbent rather than being absorbed into it. Activated charcoal is odorless, tasteless and nontoxic.
Activated charcoal sticks, known as binchotan charcoal, have been used as water purifiers in Japan since the 17th century. They have an incredibly porous surface, which attracts contaminants found in tap water. These contaminant are then held in the surface of the carbon.
As well as filtering the water, the activated charcoal also infuses the water with minerals.
Most filter water bottles that use activated charcoal hide the filter by design. The Black+Blum charcoal filter water bottles, sold within the Eau Good range, use binchotan charcoal sticks in their raw state.
We believe this incredible source of power shouldn’t be hidden, and our water bottles are designed to showcase the filter while using it to its best potential. The design allows the filter to slot into the side of the bottle, ensuring it is always in contact with the water. Our water filters last up to six months if used daily.