I associate this flavor with a "metallic" taste. If it is very intense, it
can be perceived as bitter.
Ken
>
>I think there is silver oxide when the process is run too long.  First when
>that happens the CS will get a bitter taste which I associate with being
>alkaline.  With silver, hydrogen and oxygen as the only elements present,
>silver oxide and silver hydroxide are the only compounds I know of that can
>do this.  Theoretically silver hydroxide could be made at the cathode, and
>silver oxide at the anode, where there is lots of free monoatomic hydrogen
>or oxygen.  Silver hydroxide spontaneously degrades to silver oxide rather
>quickly, so I believe that there can be trace amounts of it present in CS
>that is "overdone", and that is what contributes the bitter taste.
>
>Marshall
>
>
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