Pittsburg dispatch. [volume] (Pittsburg [Pa.]) 1880-1923, 1892-02-14
KITCHEN CHEMISTRY.
Scientific Explanation of the Action
of Soap Upon Grease.
THE KIND OF CLOTHS TO USE.
THE BREEDING GROUNDS OF GERMS
WRITTEN FOR THE DIsPArcH.J

| WRITTEN FOR THE DIsPATcH.J
Every cloth used in the kitchen should be
neatly hemmed and have a tape loop tor
| hanging it up. Dish towels must be Of
| linen, but for dish cloths nothing is better
than cheese cloth, four thicknesses quilted
| together. This material is also good for
dusting cloths For the cleaning of paint
and floor use heavier linen, but of good
absorbing quality Several sets of these
cloths should be kept on hand in a special
| drawer; this is a necessary step toward
good housekeeping. Servants, like chill
dren, are easily made orderly if order is
made easy.
When a cleaning cloth has been used ID
must be itself cleaned-but how?
A rinse and squeeze is not enough.
Kitchen dirt is always largely mixed with
grease, and grease must come in contact
with a substance of alkaline nature-as
soap, soda or ammonia-before it is remov-
able by water. To be sure, the chemist
uses benzine, alcohol, chloroform or ether to
dissolve fats, but for us of the kitchen these
agents are both too expensive and too dam
gerous. We, too, however, are chemical
manipulators, and in nothing more surely
than in the processes Of cleansing.
Tho Re-asents of the Kitchen.
Our grandmothers kept things sweet and
wholesome on the farm with soft soap and
lye, and for US the hard soap of commercs
performs the same work. With all the re-
searches OF the laboratories and the boards
of health, soap, hot water and sunshine still
hold their place in the front rank as clean
ing agents, and the finest chemical tests
have their rival in n Good nose To under
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Ho" sohp Acss on Greasc'
This condition of the oil, in which each
minute globule is coated with al film OF soap,
Is ealieu an emulsien' anu anu tne Oh. on Is IN e4.
gIobuies of new milk, only that the COATING
then is caseip. We know how easily milk.
when SMILED ON n fabric can he washed ont
Leaving no stain of FAT and so with this oil
and so9n mixture but if either this or tine
milk he allowed to drv into the fabric each
partieIe of fat will lose its protecting enyel-
one and remain as crease. Hence the i'm
portance of rinsing out the soapy waite
from a cloth that has been washed in il,
The soap holds grease and dirt in the form
OF an emulsion. and all will 90 together
with rinsiug: but if allowed to dry into the
cloth we shall keep both soap and dirt. "a
the dinrv hard surface of the cloth will bear
witness,
Soda or ,aI-sod.. as cleansing AGENT.
needs word of explanation. Here we
have the alkali only, which, as soon as 1t Is
dissolved, unites with part of the grease and
forms soap which then acts as soap on the
rest of the grease. Dissolve little soda In
hot water and add oil, as we did to the soap
solution. On shaking it well. we have a
liouid so closely resembling milk in sp-
naarance that nIaced side bv side we coutd
not tell one from the other. If we pour
this out we shall find no greasy deposit on
the side of the glass: every microscopic
globule has been safely coated with the
soap. and so carried off by the water
killing on 'ho microbes.
It is best, however, to use our sIkan IN
the form of soap already made; tis in .
milder and less corrosive form, and It Is