By: Rabbi Shay Tahan

As summer draws to a close, many people take advantage of the remaining days to travel, go on vacation, and enjoy meals at restaurants before returning to their regular routines. However, eating at restaurants, whether at home or while traveling, raises several important halachic questions that deserve clarification.

Can one eat at any restaurant simply because the owner claims that the food is kosher? Is it permissible to eat at a restaurant without reliable kosher supervision if one brings his own kosher food? And what about eating at tables outside a restaurant in a public area?

The following are some of the important halachic guidelines:

One should not eat at a restaurant unless it has a kosher supervisor who is known to be God-fearing and thoroughly knowledgeable in all the halachot pertaining to food preparation and the proper operation of a kosher kitchen.

It is obvious that one cannot rely on a restaurant owner who merely testifies that the food is kosher. Although Chazal established the principle that one witness is trusted regarding matters of issuri (Gittin 2b), and Rashi explains that the Torah entrusted every Jew with regard to separating terumah, shechitah, and the removal of forbidden fats and the sciatic nerve, nevertheless, this principle does not necessarily apply to a restaurant, as will be explained.

The Gemara (Avodah Zarah 39b) states that in Syria, at that time, certain food items could not be purchased except from a person whose reliability was established. Rashi explains that the shopkeepers in Syria were suspect because they were not careful regarding the prohibition of lifnei iver lo titen michshol (“Do not place a stumbling block before the blind”), and would sell Jews products that they had purchased from non-Jews.

Although the Aruch HaShulchan (Y. D. 119:1) understands that this ruling applied specifically to Syria because the shopkeepers there were suspected of wrongdoing, whereas elsewhere every Jew is presumed kosher and it is therefore permissible to purchase from them, nevertheless, the Rambam (Hilchot Ma’achalot Assurot 11:25–26) writes that nowadays one should not purchase food from just anyone, but only from someone who has an established presumption of kashrut. Thus, according to the Rambam, there is no longer a distinction between Syria and other places.

The Aruch HaShulchan (4) explains the reason for this distinction: although the Torah indeed established that every Jew is trusted with regard to matters of issur, a permanent shopkeeper who is constantly engaged in selling food is different, because he may come to rationalize improper practices and permit to himself what is forbidden.

The Tur (Y. D. 18) likewise cites the Rosh as stating that although one witness is generally trusted regarding matters of issur, the Jewish people have nevertheless long established the practice of not relying upon butchers, and instead appointing known and trustworthy individuals to oversee the shechitah and inspection of the meat.

In a restaurant kitchen, numerous people are involved in the preparation of the food, and the kashrut standards and reliability of those individuals are not necessarily known. Furthermore, people are occupied with earning their livelihood and can easily make mistakes in numerous areas when there is no watchful eye of a kosher supervisor who is knowledgeable in halachah. This is especially true in our times, when the laws of kashrut have become highly complex, involving meat, fish, leafy vegetables, bishul akum, the separation of terumot and ma’asrot, ovens, kitchen utensils, raw ingredients, additives, and many other issues. There is therefore no reasonable basis to rely upon a person’s testimony when it is not accompanied by constant and effective supervision.

Accordingly, there is no basis for permitting one to eat at a restaurant that lacks certified kosher supervision, unless there is a trustworthy, God-fearing, and halachically knowledgeable mashgiach who actively oversees everything that takes place there.

Rabbi Asher Weiss explains (Minchat Asher, vol. I, no. 37) that there is an obligation to establish a kosher-certification system that stands as a strong protective wall, whose purpose is to ensure that everything sold in the stores and restaurants under its supervision is subject to excellent and reliable oversight. He cites the Yeshuot Yaakov (Y. D. 15:1), who writes that whenever a regulation is established for the benefit of the public, even an extremely remote minority must be taken into consideration, and one may not rely solely upon the principle of following the majority.

Eating at a Restaurant or Outdoors

Eating at a restaurant is permitted, and it is likewise permitted to eat at a table placed outside a restaurant in a public area. Nevertheless, as a matter of modesty and proper conduct, it is preferable to avoid eating directly at the entrance of a restaurant or in a location that is conspicuous to the public.

The Gemara (Kiddushin 40a) states that one who eats in the marketplace is compared to a dog, and according to one opinion is disqualified from giving testimony. Rashi explains that such behavior demonstrates a lack of self-respect and embarrassment. This ruling is recorded by the Shulchan Aruch (C. M. 34:18), who writes that people who habitually eat in the street in front of everyone are considered bezuyim and are disqualified from testimony.

However, the Rishonim and Acharonim establish several qualifications to this ruling. Some explain that it refers specifically to eating bread or eating in a gluttonous manner, while others maintain that the disqualification applies only to someone who habitually eats substantial meals in public. Furthermore, there is discussion as to what constitutes a “market”—whether it refers specifically to a place frequented by large numbers of people or even to a place where only a few passersby are present. The Bach and other Poskim also indicate that the concern is primarily with someone who regularly conducts himself in this manner.

In addition, some Poskim write that when eating in public is customary in a particular place and is not considered disgraceful by the local population, the prohibition does not apply. This is certainly relevant in our times, when eating at restaurants with outdoor tables has become commonplace.

Many Poskim therefore permit eating at restaurants with tables outside, including Rabbi Ben-Tzion Abba Shaul, as cited in Shalom Yaakov (p. 270). This is especially so because the disqualification discussed by the Rambam and Shulchan Aruch is only rabbinic, and there are several reasons to distinguish between the behavior discussed by Chazal and the ordinary practice of eating at a restaurant today.

Nevertheless, as a matter of modesty and proper conduct, it is preferable to eat inside the restaurant when possible.

One should also exercise caution when reciting blessings while eating outdoors. It is possible that women dressed immodestly may pass by, and the Shulchan Aruch (O. C. 75) rules that an uncovered area that is normally covered is considered ervah and may not be looked at while reciting words of kedushah. This applies not only to Keriat Shema but to all matters of kedushah. Therefore, when necessary, one should avert one’s eyes or cover them with one’s hand or a siddur while reciting the blessing.

Sitting in a Non-Kosher Restaurant While Eating Kosher Food

The Poskim debate whether one may sit in a non-kosher restaurant while eating his own kosher food, or order items such as a drink in a disposable cup or fruit, due to the concern of mar’it ayin—that observers may mistakenly assume that he is eating non-kosher food served by the restaurant.

This question is particularly relevant today when businesspeople have meetings with non-Jewish colleagues in non-kosher restaurants. In many places, restaurants permit customers to bring their own kosher food or to order items that are kosher while their companions eat the restaurant’s food.

Rav Moshe Feinstein (Igrot Moshe, O. C. II, 40) ruled that one should not eat even kosher food in such a restaurant because of mar’it ayin and suspicion. However, he permitted it in a situation of significant hunger or distress when no alternative was available, provided that the person eats discreetly. He advised sitting where acquaintances passing outside would not see him, and if someone nevertheless saw him, he should explain that he was eating only food that was known to be kosher.

On the other hand, it is cited in the name of Rav Yaakov Kamenetzky (Emet LeYaakov, C. M. 425, footnote) that there is no mar’it ayin concern in this situation. Since it is entirely possible for someone in a restaurant to be eating permissible food, or even to have entered the restaurant for another purpose, we need not suspect someone who sees him of assuming the worst.

Rav Asher Weiss (Minchat Asher, vol. I, 67) discusses whether mar’it ayin is limited to situations specifically prohibited by Chazal, or whether it is a general prohibition that applies whenever an action appears to be forbidden. The Magen Avraham (463:5) takes the former approach, while the Pri Chadash (461:2) maintains that we cannot create new cases of mar’it ayin beyond those established by Chazal. Rav Weiss concludes that in situations involving significant need or difficulty, one may rely on the Pri Chadash’s approach.

He further notes that in our times, business meetings in non-kosher restaurants are commonplace. Since this has become a recognized practice, people generally do not assume that a Jewish participant is eating non-kosher food, thereby reducing the concern of mar’it ayin.

Nevertheless, one should avoid entering a non-kosher restaurant without a genuine need, particularly establishments that are widely known to be non-kosher.