Halachot and Customs
Is it permitted to drink from a glass cup that has not been immersed?
Question
Is there no problem with drinking from a glass cup that has not been immersed?
Thank you, honored rabbi.
Answer
Greetings and blessings
You are right that it is forbidden to drink from an unimmersed cup.
My answer dealt with the laws of kashrut, and in a cup that has not been immersed, the food is not forbidden. However, your comment is indeed important, and it should be added that it is forbidden to use a glass cup without immersion, although the beverage inside the cup is not forbidden.
With blessings,
Binyamin Shmuali
