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"Ronacher, K, Dr asked the Naked Scientists: I take a bottle of filtered water with me to work everyday. The water tastes fine when i fill my bottle. Once at work i have realise that if i leave the bottle open on my desk for a few hours the water tastes really bad of chemicals. If i leave the bottle tightly closed this does not happen, so it cannot be chemicals leaching from the bottle into the water. I have tested this now many times and always make the same observation. My office is adjacent to laboratories and we share the same aircon system. I was wondering if the water in my bottle could absorb chemicals from the air. There is no obvious smell of chemicals in my office and despite being a biochemist myself i am not able to judge by the taste of the water what chemical it could be. I have searched the literature a bit but could not find any evidence that chemicals in the air can be absorbed by water. Do you have any explanation for this?KatharinaWhat do you think?
Understanding that higher oxygen concentrations may improve the taste of the water,...
Quote from: Ethos_ on 23/07/2015 02:59:12Understanding that higher oxygen concentrations may improve the taste of the water,...How?Pretty much all the water you taste has oxygen in it.
i didn't ask for an unevinced claim from a group who claim to solve the "problem" and are effectively paid to make stuff up.. i asked for an explanation.
If the lid is left on, and the bottle is full, then the extent of degassing is likely to be less than with the lid off. Oxygen will certainly exit, and dissolved oxygen is known to contribute to perceived taste.