Water Cooler

The water cooler

The first step towards modern storing of water to keep it cool or hot. Made of plastics or steel and aluminium, the water cooler. With a layer of insulation between two layers of plastic or metal that can keep water cold for almost a day easily. The insulation serves as a barrier for the temperature to not be affected by the outside temperature as much.

Sizes and features

Available in various sizes from camping/picnic sizes for multiple people to smaller ones that fit a litre or two for a single person to use over a day. These smaller sizes are common among children at school attached to a strap so it is easy to carry as well. The larger coolers have a bigger mouth so you could also put some water add ice and store cans or juice boxes to keep them cool. Larger water coolers also have a carrying handle so one can move them about easier. 

Things to keep in mind

It is recommended to buy coolers that have not been made from plastics that contain BPA as it can have an impact on the health of people consuming water from such containers. There is research to prove the effects are minimal but it is better to be safe. Over extended periods and depending on individual body chemistry it could cause harm.