How to save food without using a fridge?

Source: Savefoodfromthefridge

The Korean designer Jihyun Riyou is inspired by the traditional oral knowledge of saving food without using a fridge, knowledge that has been used in her country in the past. She designed a whole system to save fruit, potatoes, herbs, vegetables, ...without using a fridge. All details can be found on her site. She also keeps a blog to share her ideas and where she asks everyone to share his/her knowledge.