In ancient times known for keeping rotten food and not by bringing food to the ice or snow to bury them according to nature. This method is widely used in countries with cold weather.
In ancient times, humans maintain and preserve it from decay faster by bringing food to ice or snow cover them naturally. This method is widely used in countries with cold climate.
In ancient times, a known human storage and preservation from rotten faster by bringing food to soak the water ice or snow on them naturally. This method has been widely used in the countries with cold weather.