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Let's say you're staying at a non-Jewish relative's house. He bought you kosher food because he knows you keep kosher. He buys you a drink such as milk. You see him pour the drink for himself into his own non-kosher glass. While pouring, the jug's spout touches his glass. Are you allowed to use that jug to drink out of?

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  • 1
    Aside from the glass issue, are you allowed to drink anything in a non-Jew's house?
    – Curiouser
    Aug 5, 2011 at 22:12
  • It doesn't matter if it's a relative. also you can't drink any alcoholic beverages.
    – Avraham
    Aug 7, 2011 at 12:42
  • Why just alcoholic beverages? What about coffee?
    – Curiouser
    Aug 7, 2011 at 20:25

1 Answer 1

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As long as the glass is clean, yes, absolutely. You can even drink from one of his non-kosher glasses.

You can use a non-kosher vessel for kosher food, with the following conditions:

  1. The vessel is completely clean
  2. The vessel and food are both cold (less than ~113 degrees Farenheit).
  3. We're talking about a bowl, plate, or cup; cutting or puncturing with a non-kosher knife or fork gets more complicated -- the rules here are for standard temperature and pressure.
  4. The food isn't a "pickling liquid" like brine, vinegar, or hard liquor. Milk, water, orange juice -- all are fine.
  5. Don't let the food sit in the vessel for 24 hours.
  6. You don't use this non-kosher vessel on a regular basis. So don't take the cup home with you, but it's okay to use when visiting there.

As long as those conditions are met, it doesn't "treif" up your kosher food.

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  • Sources.......... Feb 1, 2012 at 2:19
  • see this answer as well: judaism.stackexchange.com/a/2232/603
    – Menachem
    Feb 1, 2012 at 2:31
  • 2
    Acc to the Shulchan Aruch, none of the points on your list are necessary for glass except the first. Apr 17, 2012 at 23:42
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    The Ashkenazic position is to be strict on glass a priori.
    – Shalom
    Apr 18, 2012 at 0:30
  • @unforgettableid: thank you for your comments. But they belong as comments (or a separate answer, feel free to borrow from mine when writing yours), not edits to mine. The italics on the word pressure were intentional.
    – Shalom
    May 14, 2012 at 2:16

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