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Plastic wrap-coated watermelon bacteria burst? A set of experiments tells you

author:Qilu one point

Watermelon is the best fruit to quench your thirst

Loved by many people

A bite on a hot summer day

Icy sweet and crunchy chilled watermelon

It's very pleasant

But can you eat watermelon overnight?

The watermelon is wrapped in plastic wrap

Will there be an increase in bacteria?

Can you eat watermelon overnight?

Watermelon is best eaten fresh, because if the storage conditions are improper, once harmful bacteria multiply, some bacteria produce toxins not only exist on the surface of the watermelon, but may also contaminate the entire watermelon with the juice. If it happens that the contaminated bacterial toxins are strong, even cutting off a layer of the surface is not absolutely safe.

If it needs to be overnight, it is recommended to wrap it in plastic wrap and put it in the refrigerator for refrigeration.

Will there be more bacteria wrapped in plastic wrap?

Experimental pro-test:

Group 1: Put the watermelon wrapped in plastic wrap at room temperature for 1 day, and leave it at room temperature for 1 day without plastic wrap.

Plastic wrap-coated watermelon bacteria burst? A set of experiments tells you

The second group: put the watermelon in plastic wrap in the refrigerator for 1 day, and leave it at room temperature for 1 day without plastic wrap.

Plastic wrap-coated watermelon bacteria burst? A set of experiments tells you

Group 3: Put the watermelon in plastic wrap in plastic wrap in the refrigerator for 3 days, and put it in the refrigerator for 3 days without plastic wrap.

Plastic wrap-coated watermelon bacteria burst? A set of experiments tells you

Colony culture experiments were used to judge the freshness of watermelons

Experimental results

Watermelon wrapped plastic wrap is not so scary, wrapped plastic wrap is still useful.

Plastic wrap-coated watermelon bacteria burst? A set of experiments tells you

(1) Keep the watermelon in the refrigerator for storage, better than room temperature;

(2) Put in the refrigerator freezer, watermelon wrapped with plastic wrap is far better than watermelon without plastic wrap;

(3) Watermelon without plastic wrap, internal bacteria breed in large quantities, higher than the surface; Watermelon wrapped in plastic wrap has far fewer bacteria inside than the surface layer;

(4) Watermelon is placed on the 3rd day, even if it is wrapped in plastic wrap, it will breed a large number of bacteria, and it is not recommended to eat it.

Is watermelon too sweet a sweetener?

Watermelon getting sweeter is actually the result of the joint action of breeding and cultivation technology, sweetness is a taste, the sugar content of the fruit and the type of sugar will affect the sweetness. The sugar content of watermelon is generally about 5%-12%, and up to 15%. Watermelon contains fructose, sucrose and glucose and other sugars, of which fructose is the sweetest.

The online injection of sweetener into watermelon is not reliable. The injection process will leave a needle hole on the surface of the watermelon, which will become a channel for bacteria and mold to invade, and the fruit is easy to spoil. Injecting sweeteners does not guarantee its uniform distribution in the fruit, and will also produce local scars to affect the taste, which is not worth the loss.

How to eat watermelon healthily?

1. It is not recommended to eat overnight watermelon, if you need to overnight, wrap it in plastic wrap and refrigerate;

2. When unwrapping the plastic wrap to eat, cut off 1 cm of the surface of the watermelon;

3. Eat watermelon as soon as possible after buying it back, preferably for no more than one day.

(CCTV Life Circle)

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