Can you freeze plastic water bottles?

In this guide, we will address and answer the query, “Can you freeze plastic water bottles ?” and answer other similar related questions like “Is it safe to freeze plastic water bottles” “How to  freeze plastic water bottles” and “ How long does it take for bottled water to go bad?”

Can you freeze plastic water bottles?

The answer is yes. You can freeze plastic water bottles. Some people believe that it is unsafe to freeze plastic water bottles but there has not been any scientific proof to back it up.

Water expands when frozen and in turn, causes the bottle to expand, but still, it is okay to use plastic water to freeze your water.

Is it safe to put plastic water bottles in the freezer?

It is safe to put plastic water in the freezer because plastics do not have dioxins. Moreover, freezing does not encourage the release of chemicals.

 Most foods are frozen with plastic substances such as plastic wraps and plastic containers. Plastic water bottles are not different, they can be used to safely freeze water in the freezer.

Plastic water bottles can be of concern if used more than twice without being cleaned properly. If not cleaned properly, plastic water bottles can cause diarrhea and vomiting caused by germs. Still using plastic water bottles more than once cannot cause cancer.

How to freeze plastic water bottles?

You should not totally fill the bottle with water, instead leave an inch before you seal the bottle. The space left allows room for the water to expand therefore won’t pop the lid off.

To freeze plastic water bottles, fill them with water and place them in the freezer. Once frozen, remove the bottles and store them in a freezer bag.

To freeze water more efficiently. The following factors are considered:

  • First, remove water impurities. Impurities can make it hard for water to form ice crystals faster. The less the impurities, the faster the freezing process. 
  • Secondly, you should increase the water surface area. Water takes less time to freeze with a bigger surface area.
  • Thirdly, you can boil your water before freezing. Hot water freezes faster than cold water.

How do you thaw plastic water bottles?

Plastic water bottles can be thawed by leaving them out at room temperature or by running them under warm water.

 Leave the bottle out at room temperature

If the water is cold but not frozen, it will thaw relatively quickly just sitting out on the counter. If the water is frozen solid, it will take longer to thaw. You can speed up the process by setting the bottle in a bowl of warm water for a few minutes, then draining the water and repeating. 

Running the bottle under warm water

This is the quickest way to thaw a frozen water bottle. Place the bottle under a stream of warm water, turning it so that all sides of the bottle are exposed to the water. Once the water inside the bottle is no longer frozen, empty it and refill it with fresh water.

What types of plastic water bottles can you freeze?

There are many types of plastic water bottles that can be frozen. Some examples include disposable bottles, reusable bottles, and even sports bottles. Disposable plastic water bottles are often made from thinner plastic that is not as durable as reusable bottles. 

However, they can still be frozen and used again. Reusable plastic water bottles are usually made from thicker, more durable plastic. They can be frozen and used multiple times without any problems. 

Sports bottles are often made from a very durable plastic that can withstand being frozen multiple times. These bottles are ideal for athletes or anyone who wants a durable water bottle that can be frozen.

Does frozen water go bad?

Water does not expire but the plastic water bottle can expire, this is why bottled water has a date of expiry on them. With time plastics tend to leach into the water. If the bottled water is stored for too long, the leached substances reach unsafe levels.

You can learn more about plastic water bottle disposal here.


In this brief guide, we have addressed the query, “can you freeze plastic water bottles?”  We have also discussed whether it is safe to freeze plastic water bottles, how long to freeze plastic water bottles and the types of plastic water bottles.

Hope you found this blog useful, if you have any questions, please let us know


What was missing from this post which could have made it better?

Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.