How
should one prepare a baby’s bottle on Shabbos?
We are
referring to the preparing of a semi-thick solution, as a solution of this
nature involves ìéùä – kneading. In the
previous shiur we mentioned that one must deviate from the norm when mixing a
solid and a liquid and this manifests itself in the way one pours and mixes the
components.
When
preparing a bottle, if the norm is to pour the water or milk onto the powder, on
Shabbos one must pour the powder onto the water or milk. One then shakes the
bottle to mix the ingredients.
Would
coffee making and cocoa be subject to ìéùä?
The
Chazon Ish writes
that soluble items are not subject to the constraints of
ìéùä at all, because the solution remains a
liquid. However, he adds that if the grains or powder sink to the bottom of the
liquid the solution might be bound by the constraints of
ìéùä albeit it is called a
áìéìä øëä – a liquid solution.
Accordingly, one may add sugar, instant coffee and salt to water or milk in any
way seen fit.
What if I
need to make a mixture of a thick consistency for a baby and I cannot prepare it
before Shabbos?
We
learned that one must not prepare a áìéìä òáä
on Shabbos but when it is necessary, especially for baby food, one may pour and
mix the ingredients, but one must make sure that one deviates from the norm.
Accordingly one may mix cookie or bread crumbs and cream cheese for a baby
provided that one adds the cream cheese to the crumbs (one normally does the
opposite) and mixes them with one’s finger or with a spoon in a crisscross
fashion.
Mixing
yoghurt and cream cheese also involves thickening a mixture and when it is
required for a baby, one should, if possible mix the two before Shabbos; if it
is not feasible one should pour and mix the two items b’shinui.
How is
one to prepare egg salad on Shabbos?
Preparing
the egg and onion salad on Shabbos involves a áìéìä
òáä and therefore many prepare it before Shabbos. However, others are
accustomed to prepare the salad on Shabbos and it is known that many great
Rebbes would prepare it themselves at the table (and not allow others to prepare
it because of the many issurim involved).
The eggs
and onions must be peeled close to the meal because peeling involves the
melacha of Borer. The eggs may be mashed with a fork because they do
not emanate from the earth, but the onions should not be chopped too finely on
account of Tochein – grinding.
If
possible, pouring the oil or mayonnaise should be done b’shinui, i.e. in
the opposite order. The mixing should also be done b’shinui, i.e. with
one’s finger or crisscrossing.
Others
are accustomed to preparing the salad without any deviations from the norm.
As
mentioned the optimal method is to prepare it before Shabbos but if one is
finicky about the taste etc. one has what to rely on. It is always advisable to
consult your own rav.
Rav
Sternbuch shlita points out
that one must also be aware of the following: l’chatchila not to smooth
the egg salad on the plate; not to remove egg shell from within the salad on
account of Borer; the shells are muktze and must not be handled.
Is there
a problem to prepare potato salad on Shabbos?
An
important factor constituting ìéùä is binding
solids. In order to determine whether ìéùä is
taking place one must find out whether the solids our being bound together or
are merely being covered in liquid.
The
Mishna Berura
tells us that there is no problem mixing lettuce salad (with liquid) because the
lettuce is not cut up finely enough to cause a problem. On the other hand he
says, people who usually cut radish and cucumbers finely and pour vinegar or
other liquids over them and mix them are violating the prohibition of
ìéùä.
In this
latter case he says the solution is to mix the ingredients slowly and
l’chatchila first pour the vinegar and only then add the solids to the
liquid.
Previously we wrote that it is preferable to mix the ingredients in such a case
in a crisscross fashion or with one’s finger.
Reverting
to our question we see that large pieces are not subject to the constraints of
ìéùä and therefore mixing mayonnaise and potato
salad is permitted as it is not called ìéùä.
One may
mix carrots and orange juice on Shabbos because the resulting mixture does not
resemble ìéùä at all.
What
about mixing orange or lemon juice and cream cheese or sour cream?
In this
case the fruit juice does not bind solids, on the contrary, it dilutes the
solids, which is contrary to the definition of ìéùä,
and therefore it is permitted. For this reason Rav Shlomo Zalman Auerbach
ztz”l
permits adding sugar to sour cream, because the sugar becomes liquid and dilutes
the sour cream.
See the SS”K chapter 8 footnote 81 for an explanation of this
opinion.