Soak some juliennes of ginger in vinegar, in a small jar. Salt may be added for taste.
Did the ginger slices get spoilt even after a week or a fortnight?
Soak a slice of ginger in water. Salt may be added for taste.
Did the ginger slice get spoilt?
Taste a drop of vinegar. Is it sour? Acids are sour to taste.
Can you decipher why the ginger juliennes did not get spoilt in vinegar?
Answers
Answer:
vinegar acts like a prevative that's don't spoil anything
Answer for the first part:
No, the ginger slices didn't get spoiled in vinegar.
Answer for the second part:
Yes, it doesn't stay the same as before, after some days.
Answer for the third part:
Yes, vinegar was sour to taste. It was so due to the presence of acetic acid in the vinegar.
Answer for the fourth part:
Ginger juliennes didn't get spoiled in vinegar due to the preserving nature of vinegar. The Acetic acid present in the vinegar is too acidic for bad bacteria to grow in it, which is why vinegar keeps the ginger as it is. The Acetic acid in vinegar is present in the amount of 5-10%.
To keep the things fresh, people use vinegar in order to preserve them. This process of preserving is known as Pickling.