re: Recommended water purifier? Quote:
Originally Posted by carboy This is not directed to you in particular - but in general.
Why should anyone wash fruits and vegetables with Filtered water, where does this paranoia end? | Quote:
Originally Posted by Recompose Knowing that it would only take a thousand for my peace of mind, I started reading up on the inexpensive devices like the Swach and Pureit. 6K for a fruit and vegetable washer is an overkill. |
There are 2 separate questions
1. Is there any benefit in using filtered water for washing fruits veggies?
Maybe not.
2. Is there benefit in using product like kent ozone fruit/veg washer?
It is good - IF THEIR CLAIMS ARE TRUE. In my opinion, It is not about microbes. They say that ozone treatment also removes Pesticides and chemical contaminants. We all know that in India there is over use of pesticides in agriculture. And many dangerous pesticides banned in other countries are legally available here. In this case I think it is wise to be a little careful. I dont use this kent ozone stuff because I dont know how valid their claim is-about removal of pesticides/chemicals. Quote:
Originally Posted by Recompose Having read up on the products, the websites mention killing x number of bacteria and viruses. Some technology involved (introduction of nano-silvers, so they say). Nothing like UV, but better than just regular filtered water. |
When I said filtered water,dont confuse it with regular filters which only removes large particles like sand. There are many types of advanced filtration techniques like micro filtration, nano filtration, activated carbon or silver - which are used in these low cost purifiers. All these differ in effectiveness in killing microbes and removing contaminants. But they give you decent level of purification. you can get some comparison on different methods in the CDC website link I mentioned few posts back. Quote:
Originally Posted by drmohitg The water they use for cooking will still suffice because during the process of cooking most Indian food, any bacteria will crease to exist in the food. Whereas if you happen to drink the same contaminated water, it will make you sick in no time. Hence the reason for buying packaged water in such eateries. | Quote:
Originally Posted by Recompose You've stolen my words carboy. I too have the same opinion, especially when it comes to buying bottled water at fine dining restaurants. If I relish their food which was made with the same 'regular' water, why should I purchase an overpriced bottle of mineral water?
The situation at home is not the same though. Using the example of fruits and vegetables led you to take a narrow point of view. There's loads of other things we use tap water for. Take a simple example, whilst preparing a packet of instant noodles or cooking oats, we use the regular tap water. Rationale being we're going to be boiling the water. But somehow yesterday, I wasnt convinced with this. |
To kill germs only boiling water is enough, agreed. But what about dissolved contaminants and impurities. Just an example, a recent study on underground water (published in TOI) - which obviously is used in homes via borewell - in Bangalore found that the nitrates levels are above 550 mg/litre (permissible level is 45mg/litre). The report also had figures for other minerals which were much more than permissible limits, I dont remember the exact figures now. On world water day, there were reports on potable water situation across the country, and the results were disappointing. If you stay near industrial areas, and there are factories which flout waste disposal norms , the chemicals may find their way to your drinking water. If you stay in areas with large agricultural lands, the pesticides may find their way to your water source, due to overuse of pesticides in majority of farms. These chemicals also flow into rivers which are used to supply drinking water to the cities after large scale purification. How good this purification is I am not sure. It is rare but you do read reports of sewage water getting mixed with drinking water due to bad maintainance of pipelines by authorities.
Remember that the chemicals have a cumulative effect, results of which might show up after a very long time, unlike microbial infection which takes effect in short time.
So, at least a cheap decently effective purifier which can remove impurities/contaminants is advisable, for drinking and cooking purposes.
It is not being paranoid, but being logical |