Answer: Unflavored: generally no, with exceptions (cRc). Flavored vodka: yes.
Reason: The base and any flavoring or wine-cask aging decide it.
Source:
- cRc: unflavored vodka is acceptable unless the label says it is made from grapes, wine, milk, lactose or whey; flavored vodka requires reliable certification.
- cRc: unflavored rum is recommended without hashgacha unless the label says it was aged or finished in wine casks.
- cRc: unflavored Blanco tequila may be used without hashgacha if it is 100% agave and CRT approved, with listed exceptions.
- cRc: for all of these, certified products are preferable to those listed as acceptable.
Related questions:
- Does whiskey need a hechsher? Generally no for bourbon and American whiskey (cRc), unless flavored or wine-cask aged..
- Does wine need a hechsher? Yes (cRc).
References: cRc (askcrc.org), “Vodka” · cRc (askcrc.org), “Rum” · cRc (askcrc.org), “Tequila”
