How does yougurt turn sour when you put a metal spoon in it for too long?

1 Answer
anor277
Aug 21, 2017

Sounds, like a good experiment.........

Explanation:

And it's an experiment you could do at home.....Take four pots of yoghurt, place a stainless steel spoon, place aluminium foil in the second, and place coper rod in the third. The fourth you leave open WITHOUT sticking metal inside the pot; this serves as the control. Do they taste different?

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