Interesting question, when you find lets us know. You can also the Star - K.
Thank you for contacting Star-K
It is fine to drink without a hechsher.
If you need any further assistance, please feel free to contact us again
Many thanks
Janine Chapman
Star-K Kosher Certification
122 Slade Avenue
Suite # 300
Baltimore, MD 21208
410-484-4110