
When you were little, were you ever told that oranges get sweeter when you throw them, and did you ever try it?
Or were you told that oranges become sweeter if you rub them with your hands?
I was told by my grandmother when I was little that rubbing them makes them sweeter.
Around the same time, I saw information on TV about how throwing them makes them sweeter.
Before I ate an orange, I used to throw it like a cue ball, rub it, rub it and throw it again and again, and then eat it.
However, I stopped throwing them at some point.
Now I only “rub it lightly and then eat it”. I have grown up, haven’t I?
I really want to throw them around… I’m a child.
But do you know why it’s sweeter?
I always thought that it was just the warmth of human hands that made it “feel” sweeter.
It’s a so-called ‘illusion’.
,,,,,,It’s a joke.
The fact is.
The source of the sourness in oranges is citric acid.
This citric acid has the function of trying to repair wounds.
From the orange’s point of view, it is very stressful when it is hand-rubbed or thrown. If they are not well treated, they will get scratches.
The citric acid does its best to repair that stress and wound.
When citric acid works hard, the citric acid is consumed and the amount of citric acid in one orange is reduced.
The less citric (sour) acid, the sweeter the taste.
This is not an illusion.

The sourness (citric acid) of oranges is consumed to repair damaged oranges, reducing citric acid. This makes them sweeter.
Trivia about oranges

What do you do with the peels of oranges when you have finished eating them?
Putting orange peels and a little salt in your bathtub will warm you up and make your skin feel smoother than usual.
Orange peel alone has a warming effect, but to increase the effect, we recommend a ‘salted orange bath’!
This is said to produce an effect similar to that of a “chloride spring*”, one of the qualities of natural hot springs.
(※It has been shown to improve a wide range of body pains, including joint and nerve pain.)

1,Put 100 g of salt in the bath.
2,Rub about 10 well-washed and dried orange peels in gauze or old stockings and rub them in the bath.

Author:Yamaguri
Reference links
https://econews.jp/idea/life/20141128.html
https://news.cookpad.com/articles/15454



