Thursday, August 22, 2013

Temperature for wine to be considered "mevushal"


Due to a rabbinic prohibition intended to encourage intramarriage by limiting Jews' ability to socialize with non-Jews, wine which is handled by people who are not Jewish is not kosher. However, due to reasons beyond the scope of this email, wine which was heated to a certain level before any prohibited contact does not lose its kosher status; this wine is called "yayin mevushal".

The temperature wine must reach in order to be termed mevushal is the one termed yad soledet bo, which is certainly achieved by 175 degrees Fahrenheit. For those who require that the heating process diminish the volume of wine, this is certainly achieved at that temperature.

(Rav Moshe Feinstein, Igrot Moshe Yoreh Deah 2:52)

Have a great day,

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