wooden cups

Good morning

We are making wooden cups for a Christian organization.
The Idea is to take communion from the cup.

The wood type we are using is either OAK or KIAAT from Africa.

what can i seal the cup with to prevent the wine from seeping though?

Would I just oil it like you mentioned above or is there another treatment that would completely seal the cup?

Looking forward to your response.

Kind Regards
Pieter De Jager
South Africa

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Arbutus Ron here...

I would use several coats of walnut oil, allowing each to dry between each application. From time to time you will have to reapply some oil and even lightly sand the cups.

Good luck!