Showing the paper lining of a fireless cooker in place.]

If possible, when packing a box with _mineral wool_, do the work out of

doors, wearing a pair of gloves, as particles from it fly into the air

and are extremely irritating to the throat and skin. Twenty-five pounds

of mineral wool will pack a nine-quart pail in a box fifteen by fifteen

inches and eleven inches high. Five pounds of _wool_ will pack the same

box for using a nine-quart pail. If a smaller pail is used, more wool or

mineral wool will be required.

_Sawdust_ is one of the easiest materials to handle. It packs easily and

does not require a cloth covering, heavy paper answering the purpose

perfectly. Proceed with the packing as for wool or mineral wool and such

other materials, omitting the pasteboard top. In place of this and the

cloth covering use a paper lining.

[Illustration: “Space adjuster” before it is covered; and small pad to

fill the space below the pail.]

_The “space adjuster”_ is a padded cylinder which slips into a cooker

pocket and makes a receiver for a smaller cooker-pail than that for

which the cooker was packed. It can be made by putting together two

pasteboard cylinders of equal length, one of which will fit rather

loosely outside of the small pail, and the other of which will slip

easily into the cooker pocket and line it from top to bottom. When the

small cylinder is stood inside of the larger one the space between the

two should be firmly packed, preferably with a soft material such as

cotton or wool. To keep the filling in place while packing it the

cylinder may be wound with twine, as shown in the accompanying

illustration. It may then be covered with a fitted muslin cover. Sew two

tabs on this cover, with which to lift the space adjuster out. When

slipped into the cooker pocket, and the small pail placed in the new

pocket thus formed, there will be found to be a space below the pail,

which may be filled by a round cushion made for the purpose.

[Illustration: Section view of “space adjuster” showing the pail and

cushion in place.]

_Ready-made hay-boxes_ and fireless cookers are to be found on the

market, some of which have advantages over the home-made article along

with some disadvantages. First of the disadvantages is, perhaps, the

cost, the expense being considerably greater than for the home-made box.

Also the choice in the matter of shapes and material for the utensils

cannot be as great as in home-made boxes, and some of the cookers are

unpractical in minor details. On the other hand, the commercial cookers

are ready for use, some of them being excellently adapted to their

purpose, and to many people this would offset the cost. Those that are

made of metal, on the plan of refrigerators, perhaps not boxes at all,

would appeal to certain housekeepers as likely to be more cleanly than

upholstered boxes. But, as food is always in tightly-covered vessels,

and as experience has shown that ordinary care will prevent anything

from being spilled, a hay-box having been kept sweet and clean without

refilling for over a year, the danger of uncleanliness is not so great

as would at first appear. Doubtless where servants are entrusted with

the use of the cooker there would usually be a greater necessity for

guarding against untidiness.

In selecting a ready-made cooker certain points should be considered.

See that the parts fit closely together, are simple and strong in

construction; that there are no seams or pockets in the kettles which

would be difficult, if not impossible, to get clean; that the kettles

are a suitable size, namely, not too large, if they are to cook food for

a small family, and not too small to ensure sufficient heat for proper

cooking; and that there is no air space over the cover that will not be

filled when the cooker is closed. In the case of the metal cookers a

round cover with a single hinge is a point of weakness, for the cover is

not sufficiently supported to endure the strain of constant use. Many of

the cookers also use tin very considerably, which is objectionable.

Doubtless there will be constant improvements in these inventions, as

there is a growing demand for them and an increasing intelligence as to

their use.

The Fireless Cook Book A Manual of the Construction and Use of Appliances for Cooking by Retained Heat, with 250 Recipes · 第 16 / 472 题