
Keeping roots in a vertical position allows the organism to save energy and remain fresh for a longer time. This shelf gives a place for them to stand easily, using sand. At the same time, sand helps to keep the proper humidity.

Apples emit a lot of ethylene gas. It has the effect of speeding up the ripening process of fruits and vegetables kept together with apples. When combined with potatoes, apples prevent them from sprouting.

An egg has millions of holes in its shell. It absorbs the odour and substance around itself very easily. This creates a bad taste if it’s kept in the fridge with other food ingredients. This shelf provides a place for eggs outside of the fridge. Also the freshness of eggs can be tested in the water. The fresher they are, the further they sink.