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When putting strawberry jam in a bottle, why is the bottle upside down?

When strawberry jam is put into a bottle, why is the bottle placed upside down? Let’s find out together.

This is mainly to squeeze out the excess air inside and keep the strawberry jam in a vacuum to the greatest extent, thereby preventing the jam from reacting with bacteria and other microorganisms in the outside air and extending the storage time of the ingredients. ;

At the same time, the high-temperature heat of strawberry jam is also used to sterilize the bottle cap;

Not only strawberry jam, but other jams will also be placed upside down after being bottled.

Expand your knowledge

1. Is homemade strawberry jam hot or cold bottled?

1. When making strawberry jam at home, the prepared strawberry jam should generally be put into glass bottles, and homemade strawberry jam should be bottled while it is hot.

2. Homemade strawberry jam generally does not have preservatives added, so the storage time is short. If it is cooled and then bottled, the strawberry jam will react with bacteria and other microorganisms in the air. This will have an impact on the freshness of the jam; filling it while it is hot will not only prevent bacteria from invading the bottle, but also remove excess air, leaving the jam in a vacuum environment, which will help extend the storage time of the strawberry jam. help.

2. Is it better to put strawberry jam in glass bottles or plastic bottles?

Glass bottles.

Strawberry jam is mainly made from strawberries and has a certain temperature. If it is packed in plastic bottles or other bottles, it is easy to breed substances that are not good for human health, thus causing harm to human health. However, glass bottles are safe, resistant to high temperatures and do no harm to the human body. Therefore, it is generally best to use glass bottles when making strawberry jam.

Of course, it is also possible to use food-grade plastic bottles to bottle strawberry jam, but since strawberry jam is usually hot-bottled, if you use plastic bottles, you need to use heat-resistant plastic bottles, and the effect is not as good as glass bottles.

That’s all for today’s sharing, I hope it can help everyone.