The importance of saving fuel can find a valid aid in the cooker case or cooking case that is found on the market or in those, which very easily and economically, every good housewife can make herself in the following way.
You take a box with a lid whose planking closes and adheres well on each side and places a thick layer of shavings or packing wool or hay or vegetable hair on the bottom of the box. On this layer, heavily pressed, one or two pots (which have the relative lid) are placed according to the capacity of the box and the needs of the family, choosing them from those that are generally more practical and used, they surround themselves well with the same material used for the lower layer and the padding is continued up to the walls of the case.
Then the pots are removed and the void they have formed is covered with felt of moderate thickness; in the same way with felt the lid is covered inside and all that part of the padding that was left uncovered. Then he prepares a felt cushion well filled with shavings or other, of the precise size of the box, which packaged in this way is ready to continue cooking the food, after it has reached the maximum degree of heat on the fire.
[p. 4] It is not possible to specify exactly how much food should be cooked on the fire and how much in the case- stove, but after the first tests every housewife will acquire the necessary practice and will be convinced of the extraordinary convenience and usefulness of this method
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which without a continuous food surveillance, saves about 3/4 of fuel.
It is recommended that the pots, which must be placed in the box, are well filled to prevent heat dispersion.
In summer, the case-stove can also be used for storing ice, milk or other, while during the winter any liquid can be kept warm.