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For other uses, see Etrog (disambiguation).
An Israeli Etrog, with Pitam and Gartel

Etrog (Hebrew: אֶתְרוֹג) refers to the yellow citron or Citrus medica used by Jews on the week-long holiday of Sukkot. While in modern Hebrew this is the name for any variety of citron, its English usage applies to those varieties and specimens used as one of the Four Species.[1]


The romanization as Etrog is according to the Sephardic pronunciation, widely used in Israel through Modern Hebrew. The Ashkenazi pronunciation as in Yiddish, is esrog or esrig. Rarely it could also be transliterated as Ethrog or Ethrogh even in scholarly work, which is according to the Yemenite Hebrew.[2]

Biblical references[edit]

6th century CE synagogue mosaic in northern Negev, Israel, depicting etrogs at the base of a Menorah

Rabbinic Judaism sees the Biblical phrase peri eitz hadar (פְּרִי עֵץ הָדָר) as referring to the etrog. Grammatically, the Hebrew phrase is ambiguous; it is typically translated as "fruit of a beautiful tree," but it can also be read as "a beautiful fruit of a tree," which helps explain the great care with which etrogs are selected for performing the Sukkot holiday rituals.


In modern Hebrew, hadar refers to the genus Citrus. Nahmanides (1194 – c. 1270) suggests that the word was the original Hebrew name for the citron. According to him, the word etrog was introduced over time, adapted from the Aramaic. The Arabic name for the citron fruit, itranj (اترنج), mentioned in hadith literature, is also associated with the Hebrew.

Cosmetic requirements[edit]

Pitam (Pitom)[edit]

Diagram of the Halachic properties of an etrog

An etrog with an intact pitam is considered especially valuable. A pitam is composed of a style (Hebrew: "דַד"), and a stigma (Hebrew: "שׁוֹשַׁנְתָּא"), which usually falls off during the growing process. However, varieties that shed off their pitam during growth are also kosher. When only the stigma breaks off, even post-harvest, it could still be considered kosher as long as part of the style has remained attached. If the whole pitam i.e. the stigma and style, are unnaturally broken off, all the way to the bottom, it is not kosher for the ritual use.

Many pitams are preserved today thanks to an auxin discovered by Dr. Eliezer E. Goldschmidt, formerly professor of horticulture at the Hebrew University. Working with the picloram hormone in a citrus orchard one day, he discovered, to his surprise, that some of the Valencia oranges found nearby had preserved perfect pitams. Usually a citrus fruit, other than an etrog or citron hybrid like the bergamot, does not preserve its pitam. When it occasionally does, it should at least be dry, sunken and very fragile. In this case the pitams were all fresh and healthy just like those of the Moroccan or Greek citron varieties. Experimenting with the picloram in a laboratory, Goldschmidt eventually found the correct “dose” to achieve the desired effect: one droplet of the chemical in three million drops of water. This invention is highly appreciated by the Jewish community.[3]


In order for a citron to be kosher it must be pure, neither grafted nor bred with any other species, therefore only a few traditional varieties are used. To prevent grafting, the plantations must be under strict rabbinical supervision.

Genetic research[edit]

Citron varieties

3 etrog.JPG

Acidic-pulp varieties:

Non-acidic varieties:

Pulpless varieties:

Citron Hybrids:

Related Articles:
CitrusSuccadeEtrogHybridGraftingChimeraSukkothFour Species

The citron varieties traditionally used as Etrog, are the Diamante Citron from Italy, the Greek Citron, the Balady Citron from Israel, the Moroccan and Yemenite Citrons.

A general DNA study was arranged by the world-renowned researcher of the etrog, Prof. Goldschmidt and colleagues, who positively testified 12 famous accessions of citron for purity and being genetically related. As they clarify in their joint publication, this is only referring to the genotypic information which could be changed by breeding for e.g. out cross pollination etc., not about grafting which is not suspected to change anything in the genes.[4]

Cross section of the Lefkowitz variety showing the signs for purity.

The Fingered and Florentine Citrons although they are also Citron varieties or maybe hybrids, are not used for the ritual. The Corsican Citron is no longer in use, though it was once used and sacred.

Selection and cultivation[edit]

In addition to the above, there are many rabbinical indicators to identify pure etrogs out of possible hybrids. Those traditional specifications were preserved by continuous selections accomplished by professional farmers.[5]

The most accepted indicators are as following: 1) a pure etrog has a thick rind, in contrast to its narrow pulp segments which are also almost dry, 2) the outer surface of an etrog fruit is ribbed and warted, and 3) the etrog peduncle is somewhat buried inward; a lemon or different citron hybrid is opposing one or all of the specifications.[6]

A later and not so widely accepted indicator is the orientation of the seed, which should be pointing vertically by an etrog, except if it was strained by its neighbors; by a lemon and hybrids they are positioned horizontally even when there is enough space.[7]

The etrog is typically grown from cuttings that are two to four years old, the tree begins to bear fruit when it is around four years old.[8] If the tree germinates from seeds, it will not fruit for about seven years, and there may be some genetic change to the tree or fruit in the event of seed propagation.[9]


To protect the etrog during the holiday, it is traditionally wrapped in silky flax fibers and stored in a special box, often made from silver. After the holiday, eating from the etrog or etrog jam is considered a segula (efficacious remedy) for a woman to have an easy childbirth.[10] A common Ashkenazi custom is to save the etrog until Tu Bishvat and eat it in candied form or as succade, accompanied by prayers that the worshiper will merit a beautiful etrog next Sukkot.[11] Some families make jam or liqueur out of it,[12] or stick cloves in the skin for use as besamim at the havdalah ceremony after Shabbat. The Dancing Camel Brewery in Tel Aviv, Israel uses the rinds of etrogim in their annual 'Trog Wit Beer, usually available around the Holiday of Sukkot.[13]


  1. ^ Etrog page by the CVC of UCR
  2. ^ The Citrus Industry
  3. ^ Style Abscission in the Citron. American Journal of Botany, Vol. 58, no 1. pp. 14-23
  4. ^ A brief documentation of this study could be found at the Global Citrus Germplasm Network.
  5. ^ Article by Professor Goldschmidt, published by Tehumin, summer 5741 (1981), booklet 2, p. 144
  6. ^ Letter by rabbi Shmuel Yehuda Katzenellenbogen of Padua midst the 16th century, printed in Teshuvat ha'Remo chapter 126
  7. ^ Shiurey Kneseth Hagdola and Olat Shabbat, cited by Magen Avraham, Orach Chaim chapter 648, comment 23
  8. ^ Chiri, Alfredo. (2002). Etrog
  9. ^ Sunkist Website
  10. ^ Weisberg, Chana (2004). Expecting Miracles: Finding meaning and spirituality in pregnancy through Judaism. Urim Publications. p. 134. ISBN 9657108519. 
  11. ^ Aish
  12. ^ Etrog recipes (link no longer valid)
  13. ^ 'Trog Wit

External links[edit]

Etrog Gallery