Home Subscribe Services Support Us
Weekly Halacha


By Rabbi Doniel Neustadt

A discussion of Halachic topics related to the Parsha of the week. For final rulings, consult your Rav.


All mezuzos(1) must be checked periodically to verify their kashrus. Everyone who lives in a dwelling(2) (whether he owns it or rents it) is Rabbinically obligated to check his mezuzos twice in seven years, or once every three-and-half years(3), since it is an established fact that over a period of time mezuzos are liable to become pasul. Age, humidity, rain, location, a paint job and/or other factors may ruin a mezuzah which was originally kosher(4). Even if one letter is smudged or cracked, the entire mezuzah may no longer be valid and often, cannot be fixed. It is imperative, therefore, to check mezuzos periodically and be prepared to buy replacements(5).

The three-and-half year time frame established by the Rabbis applies only to mezuzos exposed to normal conditions, not to mezuzos that have to weather harsh elements like direct sunlight, exposure to a sprinkler system, a paint job(6), etc. Such mezuzos must be checked more often(7). [Indeed, some meticulous individuals check all of their mezuzos every Elul(8).]

Some people are lax about checking their mezuzos claiming, among other excuses(9), that it is difficult to find a professional sofer who will come to the house, remove all the mezuzos, check them, and re-affix them in short order. Since people are wary of leaving their homes without the protection of the mezuzah for any length of time - and justifiably so - checking mezuzos gets pushed off and sometimes neglected entirely.

But since all that is necessary to ascertain the kashrus of the mezuzah is to verify that the lettering has not faded and that the letters are whole and fully formed, anyone who reads Hebrew well can check and render a verdict. No professional sofer or rabbi is required(10). Of course, if a question were to arise about a specific letter, then one would need to refer to his rav for a decision.

Obviously, this type of checking suffices only if the mezuzah in question was certified kosher by a professional sofer at the time of purchase. Before one places a mezuzah on his door post, he must have it professionally checked to be sure that it was properly written. [Unfortunately, buying a mezuzah from a Jewish-owned establishment is no automatic guarantee that the mezuzah is kosher.] Once, however, the mezuzah was certified as kosher, all future checking can be done by any layman as described above.

In order to check a mezuzah, it must be removed from the door post. If it is removed for only the few moments that it takes to check it, there is no halachic obligation to replace it with another mezuzah(11). The mezuzah is removed, looked over carefully, and if no problem is found, it is immediately returned to the door post. One does not recite a blessing over the mezuzah when re-affixing it to the door post(12).

But sometimes the checking process can drag on for a number of hours or even a few days. In such a case, it is improper to leave the house (or any single door post) without mezuzos. According to some opinions, the people in the house may even have to move out while the mezuzos are being checked(13). Obviously, this is a terrible inconvenience and highly impractical.

To avoid this eventuality, there are several possible alternatives: 1) Buy [or borrow(14)] an extra mezuzah which will replace the mezuzah that is being checked. A blessing would have to be recited when the replacement is put on(15). This solution is not practical for a large house that has many mezuzos to be checked.

2) Renounce ownership of one's home(16) for as long as the mezuzos are being checked. This procedure, called hefker, removes halachic ownership from the home and makes it an owner-less entity. Once ownership of the house is renounced, the obligation to put on a mezuzah is lifted. The residents are living in an owner-less property, and they are not obligated to put on mezuzos for at least thirty days(17).

The proper way of being mafkir an item is to renounce ownership in the presence of at least three adults. The adults may be household members. [Some Rishonim maintain that the hefker is valid even when declared in front of one individual or even in front of no one at all(18). If three adults are not available, one may rely on this view(19).]

Before re-afixing the mezuzos, one should have in mind that he is once again becoming the owner of the house.

When mezuzos are removed for more than several hours, a blessing should be recited when they are re-affixed [even if the house was not pronounced as hefker]. If all the mezuzos are re-affixed at the same time, one blessing suffices for all of them. The poskim argue as to whether one who replaced a mezuzah and forgot to recite the blessing can recite the blessing later on. One may conduct himself according to either view(20).


1 Mezuzos which are publicly owned must be checked only once every twenty-five years; Y.D. 291:1.

2 This includes a woman living alone, students sharing an apartment, etc.

3 In order to remember this obligation, the custom in Frankfurt was to check the mezuzos every Adar Sheini, which falls every two or three years.

4 Another reason for checking is to see if the mezuzah was stolen [or misplaced]; Rashi Yuma 11a. See also Meiri, ibid.

5 Y.D. 291:1.

6 Igros Moshe Y.D. 1:183. L'chatchilah, mezuzos should be removed before painting.

7 Aruch ha-Shulchan 291:1.

8 Mateh Efrayim 581:10; Kitzur Shulchan Aruch 128:3. In addition, Teshuvos M'haril 94 writes that it is proper to examine one's mezuzos if misfortune befalls an individual or his family, G-d forbid.

9 It must be emphasized that there is no halachic basis for laxity in this obligation. See Birur Halachah, pg. 399, who quotes several sources that strongly condemn those who are not careful about fulfilling this obligation.

10 Teshuvos Chasam Sofer 283, quoted in Pischei Teshuvah 291:3.

11 Da'as Kedoshim 291:1 (concerning a renter); Eimek Brachah (Mezuzah 11).

12 Pischei Teshuvah 289:1 remains undecided on this issue but most poskim rule that one should not recite a blessing in this case.

13 See Pischei Teshuvah Y.D. 285:1 quoting the Pri Megadim who maintains that it is prohibited to remain in a house [or in a room] without a mezuzah and one who has another place to go to must go there. Other poskim, however, are not as stringent and do not require one to move out of his home if the mezuzos are down temporarily, if he cannot find a replacement.

14 Har Tzvi Y.D. 238.

15 Harav C. Kanievsky (Mezuzos Beseicha 289:6); Kuntres ha-Mezuzah 289:6, quoting several poskim. Other poskim, however, do not require that a blessing be recited (oral ruling by Harav M. Feinstein, quoted in Oholei Yeshurun, pg. 22).

16 This is suggested by Mikdash Me'at 285:3 and Mezuzos Melachim 285:19. There are other halachic areas where this solution is suggested, see Mishnah Berurah 13:15 concerning tzitzis; O.C. 246:3 concerning a Jew's animal on Shabbos. For various reasons not all poskim agree with this solution. [See Sefer Tevilas Keilim, pg. 84, who quotes Harav S.Z. Auerbach as ruling that under extenuating circumstances one can rely on this solution to permit temporary use of utensils which were not ritually immersed.]

17 Although one who "borrows" a house is required to put on mezuzos after a thirty-day time period, in this case it may be argued that the people living in the house are not even considered "borrowers". Halachically, the house has no owners to "borrow" from. The house is technically owner-less and temporarily exempt from the mitzvah of mezuzah.

18 Rama C.M. 273:5. .

19 See Sm"a C.M. 273:11, Mishnah Berurah 246:15 and Sha'ar ha-Tziyun 18.

20 See Kuntres ha-Mezuzah 289:3.

Weekly-Halacha, Copyright © 2000 by Rabbi Neustadt, Dr. Jeffrey Gross and Project Genesis, Inc.

Rabbi Neustadt is the principal of Yavne Teachers' College in Cleveland, Ohio. He is also the Magid Shiur of a daily Mishna Berurah class at Congregation Shomre Shabbos.

The Weekly-Halacha Series is distributed L'zchus Hayeled Doniel Meir ben Hinda. Weekly sponsorships are available--please send email to the moderator, Dr. Jeffrey Gross

The series is distributed by the Harbotzas Torah Division of Congregation Shomre Shabbos, 1801 South Taylor Road, Cleveland Heights, Ohio 44118--HaRav Yisroel Grumer, Marah D'Asra



View Complete List

It Will be Built Again
Rabbi Label Lam - 5763

Torah - Blueprint for Life
Rabbi Berel Wein - 5765

Community Funds for Golden Vessels
Rabbi Berel Wein - 5766

Looking for a Chavrusah?

A Special Collection for the Sockets?
Rabbi Yissocher Frand - 5761

Make a Home for G-d
Shlomo Katz - 5762

Build Your Own Coffin
Rabbi Yissocher Frand - 5758


Ark of Inclusion
Rabbi Mordechai Kamenetzky - 5762

Contradictory Descriptions As To How The Menorah Was Made
Rabbi Yissocher Frand - 5767

Making This World A Reflection Of The World To Come Part I
Rabbi Aron Tendler - 5765

> Try Try Again
Rabbi Raymond Beyda - 5768

Biblical Fund Raising
Rabbi Aron Tendler - 5761

An Everlasting Impression
Rabbi Label Lam - 5771

Frumster - Orthodox Jewish Dating

Of Givers and Takers
Rabbi Aron Tendler - 5762

The Symbol of the Tabernacle
Rabbi Berel Wein - 5772

Use Your Giving Muscles
Rabbi Berel Wein - 5773

Expressed Faith
Rabbi Aron Tendler - 5763

Project Genesis Home

Torah Portion

Jewish Law



Learn the Basics




Ask The Rabbi

Knowledge Base


About Us

Contact Us

Free Book on Geulah! Home Copyright Information