Takeaways:
- In some parts of the world, people use ceramic pots, sand and water to keep their food cool.
- These clay pot coolers are useful in places that don’t have power grids, or for people who don’t have fridges or want to cut their energy bills.
- They also help protect the environment as they don’t require any sort of fuel, oil or gas.
Click here to view the original web page at: The coolest way to keep food cold without refrigeration
