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food safe finishes2/23/15
We are making a wood product which will come in contact with coffee. I would like to coat the area with a food safe finish. I was thinking about a "warmed", purified shellac/bees wax combination. I know most coatings are fairly safe once cured but coffee being acidic, I wouldn't want it to eat into the coated surface. Mineral Oil has worked marginally.
Define the amount of durability you are looking for;
These factors will help define the finish that meets you needs.
The coffee will not be making 100% contact, but only occasionally. Heat resistance will be an issue based on typical temperatures of coffees. For this application there will be no washing or cleaning involved nor any use of dish soap. Last is there will be no re-application opportunity either.
A wax may not be best even though initially I thought that would be the ticket to replacing the mineral oil. Thought of Shellac but not sure how it will stand up to the acidic nature of coffee.
What are your thoughts???
Dumb question maybe. With all of the problems with heat, moisture and acids, why not use a solid surface material?
Seems to me that would solve the problem. Solid Surface can be machined like wood with the same tools.
Shellac will fall off . Have you considered Bamboo. My rice cooker is older than the hills and it came with a Bamboo paddle. I just wash off the paddle with soapy water.
Considering Tung Oil for the coating but not sure of the wet application here, if that would stand up.
Thanks All - please keep the ideas rolling. I appreciate it.
Hot coffee and bees wax sure isn't going to work. I've always gone by the rule that wood is not the perfect material for everything. Coffee contact puts wood on the sideline as far as I am concerned.
Since I do not know what you are building, I can only give out ideas. Solid surface materials such as corian type product or hdpe or something along that line.
It was just a thought with all of the problems that you seem to running into to finish the wood.
Why apply a finish at all?