How To Use A Portable Ice Machine ?

We all know that the common way to make ice is: put the water in the freezer, and waiting for several hours until it transforms to the ice. It sounds quite simple, but the question is: how can we make the ice outside, example, in a long trip, and it is hard to find a fridge in that area where we will visit. We absolutely can not bring a big fridge during our trip. So there is a solution for us, a portable ice machine is a best choice. Because it is small and portable, we may not only carry