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With regards to the earliest you can make the Eruv on Erev Yom Tov (your actual question), The Nitei Gavriel (Laws of Yom Tov II 81:10) says you can even make it the whole day, even in the morning (meaning not the night before). In the footnotes he explains none of the earlier authorities address this issue, but it appears that it is better to wait till ...
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http://hebrewbooks.org/pdfpager.aspx?req=49150&st=&pgnum=38
Lchatchila the Eruv should be made on Erev Yom Tov - anytime starting from the night before (Orach Chaim 527:14). According to the Biur Halacha the food used in the eruv should preferably have been baked or cooked on Erev Yom Tov.
http://hebrewbooks.org/pdfpager.aspx?req=14165&st=&...
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The latter. This is based on the principle that זכין לאדם שלא בפניו - you can confer a benefit on someone without their being present. You just have to inform them, before they start doing things on Yom Tov to prepare for Shabbos, that it was done.
(Shulchan Aruch, Orach Chaim 527:9)
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Not eating Kitniot (legumes,lentils and rice) is a minhag (Iggeros Moshe O.C. III:63 confirms this approach as a reason why we don't add extra kitnios like potatoes, sunflower seeds etc.) and only forbiddon to eat on pesach for ashkenazim but is permitted to own.The source of the Minhag:
Smak (Rav Yitzchak Mikorbeil 13th century) 222:
על הקטניות וכיוצא ...
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It looks like it depends on whether they're eating their parents' food, or are doing their own cooking (using their own supplies or the parents'). In the first case they don't need a separate eiruv, but in the latter case they would.
(Shulchan Aruch Harav 527:18, citing Yam Shel Shlomo)
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See the Kitzur Yalkut Yosef in סימן תקכז - הלכות עירובי תבשילין that one should do it during the 24 hours of Erev Yom Tov.
If one does it earlier, one should redo it - but without a Bracha. However if one did not redo it, it is still valid.
He goes so far as to say one can use the Erev Tavshilin of Rosh Hashana for Sukkoth, if one had that intention; ...
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From Shulchan Aruch HaRav 527:14:
Generally, everyone makes an Eruv for themselves. The Gadol Sh'Be'ir (great rabbi of the city) is supposed to include the whole city. (This inclusion only works under certain conditions, a person should not rely on it instead of making his own)
Later on, the Ba'al HaTanya ruled in his Siddur that everyone who makes an Eruv ...
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Mishnah Berurah 527:3 writes:
וכתבו האחרונים דביו"ט שחל להיות בע"ש יזהר להקדים הכנת מאכליו לשבת בכדי שיגמר מלאכתו בעוד יום גדול דסמוך לחשיכה בזמן דלא שייך שיצטרך לו ביו"ט גופא הלא יש כאן לתא דמלאכה דאורייתא ... וכתבו דמטעם זה נהגו להקדים תפלת ערבית בליל שבת כשחל סמוך ליו"ט כדי שלא יתאחר מלאכת בישולו ביום טוב עד סמוך לחשיכה
The Acharonim wrote that on ...
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The Talmud (Beitza 16b) writes:
אבוה דשמואל מערב אכולה נהרדעא, רבי אמי ורבי אסי מערבו אכולהו טבריא. מכריז רבי יעקב בר אידי: מי שלא הניח ערובי תבשילין - יבא ויסמוך על שלי. ועד כמה? אמר רב נחומי בר זכריה משמיה דאביי: עד תחום שבת
the father of Samuel used to set the ‘erub for the whole of Nehardea; R. Ammi and R. Assi used to set the ‘erub for the whole of ...
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At least one instance is in Netzach Yisrael Ch. 46:
ויש לפרש כי זה ענין מצות עירוב תבשילין, שיום טוב הסמוך לשבת מניח עירוב תבשילין מבעוד יום קודם יום טוב, ואז אף ביום טוב יכול לתקן מאכלו לשבת. כי מה שצריך לתקן סעודות שבת קודם שבת, רמז הוא שהשבת מענין עולם הבא, ומי שטרח בערב שבת יאכל בשבת, ומי שלא טרח בערב שבת מה יאכל [ע"ז ג ע"א]. ויום טוב הסמוך לשבת, הם ...
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Eruv Tavshilin is required only when Yom Tov itself is on Friday. not Erev Yom Tov. This year, and next, it occurs on just one day during the Jewish year - the Thursday eve. prior to the beginning of the 7th day of Pesach.
If the message referred to this Friday, it is an error.
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The purpose of Eruv Tavshilin is to enable a Jewish person to cook for other Jewish people on Yom Tov for the Shabbos immediately following the Yom Tov.
A Jewish person cannot cook for a non-Jew on Yom Tov.
Therefore, it does not seem possible to cook or heat food for non-Jews who are in the Giyur process on Yom Tov. Eruv Tavshilin should not make a ...
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The Eruv Tavshillin works by beginning to prepare for Shabbat before Yom Tov starts. If you don't plan on eating the food on Shabbat, then you didn't really start your preparations using the designated food.
Eruvei Chatzerot and Techumin use the food to mark the collective residence of the enclosed area or to mark one's "primary" dwelling place for the ...
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There are some suggestions at this Web site: http://dinonline.org/2017/05/02/why-dont-we-say-a-shehechiyanu-on-the-mitzvah-of-eruv-tavshilin/
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While there is a three way machlokes about rolling the sefer torah because of Hachana, Rav Shlomo Zalman Aurbach rules that he can do so if he is practicing the leining at the time that he rolls it.
ROLLING THE TORAH
One may not roll a sefer Torah on first day Yom Tov for the reading on
second day Yom Tov (MB 667:5). When Yom Tov comes before Shabbos ...
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It's a good thing that I asked my rav this evening, and he sent me this. It says:
One may not shtel the Sefer on the first day of Yom Tov for the second
day, or on Shabbat for Yom Tov. Regarding preparing the Sefer on Yom
Tov for leinen on Shabbat, there are three opinions: Some forbid it
even if one has made an Eruv tavshilin; others only allow it ...
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I was told by a Rav of my community that we could rely on him making it for us. He said that in general this depends on the community.
Only top voted, non community-wiki answers of a minimum length are eligible
