• Question: why are lemons and limes sour???

    Asked by 823fddk47 to Ciara, Elaine, Golnaz, Gonzalo, Yannis, Yvonne on 7 Nov 2017. This question was also asked by 242fddk47.
    • Photo: Yvonne Lenighan

      Yvonne Lenighan answered on 7 Nov 2017:

      Lemons and limes contain citric acid-this is what makes them sour!

    • Photo: Ioannis Zabetakis

      Ioannis Zabetakis answered on 7 Nov 2017:

      citrus fruits (lemons, oranges, limes etc) have waht we call citric acid. All acids in food give a sour taste.

    • Photo: Gonzalo Delgado-Pando

      Gonzalo Delgado-Pando answered on 7 Nov 2017:

      Exactly, as my colleagues have already said it is because lemons and limes have citric acid and this acid gives the sour taste. Lemons are more sour than other citrus fruits (like oranges) because they have more of this acid.

    • Photo: Ciara O'Donovan

      Ciara O'Donovan answered on 7 Nov 2017:

      As the other scientists here have said it is because they contain citric acid which makes them taste sour.. fun fact about citric acid it is an excellent cleaning agent..

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