Thin rectangular siberino

A siberino is a container filled with a special liquid which, after being cooled, is used to cool or keep cold the contents of various containers such as cool bags, refrigerators, beverage holders, etc.

The use of the siberino is much more practical in cooling and maintaining low temperatures than ice because it does not melt, it lasts longer and you do not end up with a cooler full of water when the ice tile has warmed up.