Why don’t people fill their soft drink bottles?

When holding a soft drink bottle, do you wonder, Why don’t people keep their soft drinks bottles full? Not yet? What is the reason for such a way of bottling soft drinks? Let’s find out the main reason!

Why don’t people fill their soft drink bottles?

Theory of thermal expansion of liquids

The same goes for solids. When the temperature changes, the liquid also has different expansion and contraction. The theory of thermal expansion of liquids was tested and gave the following results:

Liquid expands when heated

When there is a high temperature of liquid contact or the ambient temperature tends to increase. The liquid will expand. Depending on how high the temperature is, the change of the liquid will also be different.

Liquid shrinks when cooled

If the liquid is at a high temperature, slowly reduce the temperature to a lower temperature. The liquid will tend to shrink. This has been proven experimentally by physicists. Depending on how low the temperature drops, the degree of shrinkage of the liquid will also change accordingly.

Liquid shrinks when cooled

However, the change of the liquid is quite difficult to observe. Because liquids are contained in hard objects. When heated, increasing the temperature of the liquid, the solid object containing this liquid also receives the temperature and expands. That is the thermal expansion of the solid.

How is the thermal expansion of liquids explained?

We already know that liquids expand when heated and contract when cooled. Mean:

• When increasing the temperature:
  • The volume (V) of the liquid will increase.
  • The mass (m), the weight (P) of the liquid remains the same.
  • Density (D), specific gravity (d) of liquid decreases.
• When lowering the temperature:
  • The volume (V) of the liquid decreases.
  • The mass (m), the weight (P) of the liquid remains the same.
  • Density (D), specific gravity (d) of liquid increases.

Fluid thermal expansion characteristics

Fluid thermal expansion characteristics

Both liquids and solids have their own characteristics according to thermal expansion. Here are a few things we need to remember:

• Different liquids have different thermal expansion. This is similar to the solids theorem. Different liquids will carry different molecular structures. So as the temperature increases, the change in molecular position will lead to a change in volume. So when raised together to a certain temperature, wine and water will have different expansion.
• The thermal expansion of liquids is greater than that of solids. This we will not be able to check with the naked eye, but we must use experiments. Real experiments have been proven by scientists.

Why don’t people fill their soft drink bottles?

Why don’t people fill their soft drink bottles?

Why people don’t bottle full of soft drinks is the question of many people, also find out the following reasons:

• Physical properties: As analyzed above, the liquid will expand when heated and contract when cooled.
• The manufacturer has avoided the case that the temperature in the place of storing soft drinks is higher than the temperature at the place of production. This causes the volume of soft drink in the bottle to expand, causing the bottle cap to open.
• Reduce risks in transportation and storage.

Soft drink bottles are not filled to limit the risks of thermal expansion of the liquid

In short, the reason that people don’t bottle full soft drinks is because of the specific nature of the liquid, which leads to changes during transportation as well as storage. This will ensure the quality of the beverage products as well as the safety throughout the product manufacturing process.

Through the above article, you probably know the reason why people don’t bottle full of soft drinks, right? Hope this article has brought you the necessary and useful information.

> Reference:

• 10 brands of safe and healthy bottled water
• Top 10 best bottled water in HCMC Ho Chi Minh City 2022