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R. Moshe Feinstein on Vinegar Alcohol Made in Wine-Flavored Containers (4 Iyar)
שו"ת אגרות משה יורה דעה ב:לו 4 Iyyar 5722 (1962)
Does alcohol made in wine-flavored casks absorb taste from those cask walls? Strasbourg Jewry needed vinegar, and this was how it was made.
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