Why does tea have a darker colour if brewed for longer

Why does tea have a darker colour if brewed for longer  

The best way to tell how strong we have made a cup of tea is to look at its colour. A strong cup of tea has a darker, more intense colour than does a weak one. In fact, some people, when asked, How strong would you like your tea will respond by saying simply, Dark  

Similarly, a glass of fruit cordial or even gravy looks darker if the coloured compounds in it are more concentrated. This is a general observation, and has been codified as Beer s law the absorbance A of a solution of chromophore increases in direction proportion to its concentration c, according to 

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