On the first page of google search of kangen water I was surprised to see the question "is kangen water safe". Because kangen water demonstrates it self that it got a gold medal for maintaining standard in production of water from water quality association. It got the ISO 13485 verification. It claims itself a medical device approved by Japanese health ministry or board. It is used as a part of treatment to patients in 200 hospitals the company claims why people question google about the safety of kangen water
Let us not discuss about kangen water alone we will discuss about any quality water ionizer in General. Let us divide safety concept into two parts safe for short term safe for long term. Water ionizers in general most ionizers in india and western countries or all over the world do not deal about purification part. They openly claim they are not responsible for that in their prospectus itself they clearly mention that it's the responsibility of the client to input safe good drinking water. If you input safe water into a quality water ionizer you get safe water if you input unsafe water into a quality ionizer you get unsafe water. So before inputting any water into any quality water ionizer check at your end if you are drinking microbiologically safe drinking water if answer is yes then kangen water may be safe.
another problem with kangen water machines is that some machines use electrolysis enhancer sodium hypo chloride to make salt water or strong alkaline water. Enagic it self described the above substance to be injurious to health.so when ever a kangen water machine runs 11.5 ph water for some time if you immediately want drinking water the machine runs cleaning process so that the enhancer doesn't stick to plates and comes into drinking water. I have enough trust and confidence in the standards and precautions eanagic cares for public health I feel that adequate mechanism is developed inside the machine that enhancer gets completely washed out. Drinking water would return safe. But competitors of kangen water through stones that minor residues of enhancer struck to plates. such residues were found when kangen water machines were dismantled for annunal physical cleaning process as claimed by many of their competetors. but we would not comment about the above because we didnt observe this in india physically.
in case of hrich alkakine water machines we need not use any electrolysis enhancer for any type of water eigther for drinking or for soaking vegetables. all similar waters flow with similar properies.
more over the alkalinity or negative orp or micro clustering or some other ionized water properties are because of molecular hydrogen h2 or active hydrogen or hydrogen in di atomic form. which is safe normal and natural to body it had no color no odour no taste light weight highly reactive with more diffusing property. it doesnot leave any toxins or by products in the body because h2 when it reacts with reactive species oxygen or labelled as free radicals reaction is 2h2 + o2 = 2h2o no toxins no byproducts and final product h2o formed in cells can be used for metabolic activities.