Halacha for Tuesday 19 Av 5779 August 20 2019

Warming up Foods on Shabbat- Maran zt”l’s Suggestion

In the previous Halacha, we have discussed that just as it is forbidden to cook on top of an open flame on Shabbat, it is likewise forbidden to cook on top of an electric hotplate. The only distinction between an open flame and an electric hotplate IS regarding a food which was already cooked before Shabbat: Whereas it is forbidden to even warm up a pre-cooked food on an open flame on Shabbat, it is permissible to warm up such a food on an electric hotplate on Shabbat as long as the food is considered “dry,” such as bread or Challah and not “liquidy,” such as a soup. We have likewise explained the reasons for this.

A Dish Mostly Comprised Mostly of Sauce
A dish which contains mostly liquids and only a minority of “dry” or solid food, such as a vegetable soup, may not be placed on an electric hotplate on Shabbat since the prohibition of “cooking after cooking” on Shabbat applies to liquid foods. However, a food which is completely dry, such as bourekas or bread, may be placed on an electric hotplate or a stovetop covered with a layer of metal, for the prohibition of “cooking after cooking” does not apply to “dry” foods. Thus, since this food was fully-cooked before Shabbat, there is no prohibition to warm it up on Shabbat.

A Dish Which Contains a Minimal Amount of Sauce
A food which is mostly dry but contains a little bit of sauce, such as a dish of rice which has some moisture to it, is considered like a completely dry food which is permitted to be warmed up on an electric hotplate on Shabbat, for “cooking after cooking” does not apply to dry foods. Even if a dish contains sauce but cooking it causes the sauce or liquid to diminish in quality, it is indeed permissible to warm up such a dish on an electric hotplate or a stovetop covered with a metal sheet on Shabbat.

The Permissible Way to Warm up a Liquid Dish on Shabbat
If one would like to warm up a dish containing sauce or a completely liquid dish, such as a vegetable soup and the like (besides for water, which we shall not discuss presently), there is a halachically acceptable way to do so: One should set a timer to turn the hotplate off at a certain hour. When the hotplate is off, one may place anything one likes, even a soup, on top of it so that when it turns back on, whatever is on it will become warmed. In this manner, there is room for leniency without any concern.

Thus, if one wishes to heat up liquid foods or foods whose dry/liquid status is questionable for Shabbat day, one may set a timer to turn of the hotplate between eight and nine o’clock in the morning, for instance, and once the hotplate is off and is no longer hot, one may place any fully-cooked food on it that one wishes and avoid any concern.

Summary: One may not heat up any dish or food on an open flame on Shabbat. However, it is permissible to warm up a dry food on a stovetop covered with a layer of metal or an electric hotplate on Shabbat. Nevertheless, one may not warm up a liquid dish, such as a soup, on Shabbat. If one places the dishes on the hotplate when it is turned off by a timer, this is completely permissible; in this way, one may place even a soup or anything else one wishes on the hotplate and when the hotplate turns on again as a result of the timer, the foods will be permissibly reheated in honor of Shabbat.

8 Halachot Most Popular

Matanot La’Evyonim

In the previous Halacha we briefly discussed the Mitzvah of “Matanot La’Evyonim” on Purim day which is the distribution of two monetary gifts, one to each pauper. What Must One Give? In order to fulfill this Mitzvah, one need not give actual gifts; rather, it is permissible to ......

Read Halacha

The Laws of Mishloach Manot

The Mitzvah of Mishloach Manot The verse in the Megillat Esther (9, 22) states: “In order to mark them as days of feasting and merriment and sending portions (Mishloach Manot) to one another as well as giving gifts to the poor (Matanot La’Evyonim).” The Gemara in Masechet Megillah......

Read Halacha

The “Mechaye Ha’Metim” Blessing

In the previous Halacha we have explained that one who sees a truly dear friend or relative after thirty days f not seeing him and is happy to see him recites the “Shehecheyanu” blessing upon seeing him. The Gemara (Berachot 58b) states: “Rabbi Yehoshua ben Levi said: One who se......

Read Halacha

Question: When should “Baruch Hu U’Varuch Shemo” be recited?

Answer: Moshe Rabbeinu exclaimed, “When I call upon the name of Hashem, exalt our G-d.” Onkelos translates this verse to mean that Moshe Rabbeinu meant to say that when I mention Hashem’s name in prayer, give praise to Hashem our G-d. Based on this, the Tur (Chapter 124) writes tha......

Read Halacha


Question: Must one answer “Baruch Hu U’Varuch Shemo” upon hearing the name of Hashem recited during Kiddush and Havdala?

Answer: In the previous Halacha we have explained the primary reason for answering “Baruch Hu U’Varuch Shemo” after hearing Hashem’s name, for this was indeed the custom of the Rosh who would answer “Baruch Hu U’Varuch Shemo” every time he heard Hashem&rsquo......

Read Halacha

Reciting the “Shehecheyanu” Blessing Upon Seeing a Dear Friend or Loved One

Question: If one travels overseas, returns home more than thirty days later, and is happy to see his wife or a dear friend when he returns, must one recite the “Shehecheyanu” blessing? Answer: The Gemara (Berachot 58b) states: “Rabbi Yehoshua ben Levi said: One who sees his frie......

Read Halacha

Disassembling Doors and Windows on Shabbat

Question: May one remove a door from its hinges or a window from its frame on Shabbat? Answer: In the previous Halacha we have explained that one of the works forbidden on Shabbat is building. However, just as it is forbidden to build something or add anything to a standing edifice on Shabbat, it......

Read Halacha

Giving Birth on Shabbat

Question: If a pregnant woman knows that there is a reasonable chance that she will be giving birth on Shabbat (for instance, if her due date is on Shabbat) and as a result, if she begins experiencing contractions on Shabbat, Shabbat will have to be desecrated on her behalf by travelling to the hosp......

Read Halacha