Our grandmothers were able to store products during heat without fridge. It is convenient to use their secret at infrequently visited dacha or where there are interruptions in electricity. Though the glacier is also filled with the natural cooler in the winter, it is necessary to prepare rooms in the summer.
The underground fridge requires the shady and dry place in yard corner. It is good if it is the height to protect cellar from rain drains.
The simplest option is to dig out hole in the form of cube with edge 2 meters. To strengthen walls boards, on perimeter to lay ice blocks, on floor - chipped ice layer in 30-40 cm. All cover with waterproof cloth and straw. The ceiling of glacier is done of thick boards, arrange the small hatch. Products are put on ice, having turned in oil-impregnated paper, from above powder with ice medley and covered with straw, woolen blanket. Go down in such storage at morning dawn that as much as possible cool air from the street inside got.
More modern option provides thorough approach to business. It is better to execute walls not from tree, and from concrete thickness there is not less half a meter. They will well be chilled during the winter and will be able longer to keep cold. Floor is done brick or cobble-stone, having taken care of drainage system for withdrawal of melt water. For convenient entrance the room of glacier can be continued over earth surface and to build small door and ladder inside. In that case the elevated part of the building is covered with earth for the best thermal insulation and form the decorative hill, having seeded on it dense lawn.
Landings on its perimeter of dense bush – raspberries, currants, gooseberry will help to protect glacier from the scorching sun. Along wall it is good to carry out ditches for assignment of rain and spring tides.
In glacier the ventilation is surely necessary. For this purpose through ceiling bring two pipes to surface. The incoming is lowered to the level of 50-60 cm from floor, exhaust – under the ceiling. Above the ground pipes have to be the sufficient height that did not fill up them with snow. With approach of heat of pipe close: the incoming - from above, exhaust – in glacier.
At the end of summer it is desirable to clean glacier from residues of ice and to dry. For the best effect it is possible to direct inside sunshine by means of the plywood screen painted in white color. Fight against microorganisms will be helped also by whitewashing of walls and racks of glacier svezhegasheny lime.