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safe finish (Read 1,005 times)
 
David Schuelke
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safe finish
Mar 21st, 2017 at 10:12am
 
I HAVE A REQUEST FOR SOME TEA CUPS, WHAT IS THE BEST FOOD SAFE FINISH FOR HOT TEA CUPS ?
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Glenn Jacobs
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Re: safe finish
Reply #1 - Mar 21st, 2017 at 12:46pm
 
What wood are you using?  really dense, may not need to finish. Not many finishes like boiling water.
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David Schuelke
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Re: safe finish
Reply #2 - Mar 21st, 2017 at 3:53pm
 
I HAVE SOME MESQUITE AND CHERRY
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robo_hippy
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Re: safe finish
Reply #3 - Mar 21st, 2017 at 7:47pm
 
Not sure that they need a finish. I made some once out of Mountain Mahogany, and they all cracked. Made some out of Oregon Myrtle, and they held up. Softer woods can take the hot water better than harder woods.

robo hippy
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David Schuelke
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Re: safe finish
Reply #4 - Mar 22nd, 2017 at 8:37am
 
Thank you Robo and Glen, I think I will try the mesquite and see how it holds up with no finish.
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David Schuelke
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Re: safe finish
Reply #5 - Mar 22nd, 2017 at 8:41am
 
It appears that TUNG oil might work.
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Don Stephan
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Re: safe finish
Reply #6 - Mar 22nd, 2017 at 6:19pm
 
NOT SURE I WOULD MAKE ITEMS TO BE USED FOR HOT TEA.  NOT AS EXTREME AN ENVIRONMENT AS A DISHWASHER, BUT BOWLS RUN THROUGH A DISHWASHER OFTEN CRACK.
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Len Mullin
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Re: safe finish
Reply #7 - Mar 22nd, 2017 at 10:59pm
 
Yes Don, they probably do crack from being washed in a dish washer. But, the thing is, they should never be put into a dishwasher in the first place. They are a dish that should only be hand cleaned, like other dishes that should never be dishwashed.
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Ralph Fahringer
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Re: safe finish
Reply #8 - Mar 23rd, 2017 at 9:05am
 
...and so, based on that... hand washing means the temp of the water is only about 130º or so while the water for making tea is boiling or 212º which is even hotter than in a dishwasher.

Even if left to steep for a bit, the temp is still more than hand washing  temp. When I get my tea from DD or McD's, it is around 165º.

Do you think that the temp of hot tea is ALSO too hot for the wood?

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Ed Weber
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Re: safe finish
Reply #9 - Mar 23rd, 2017 at 9:36am
 
This is one of the most frequently asked questions, (food safe finishes)
The hot or boiling question is one of the derivations of the original.

I would suggest, don't try to reinvent the wheel, use the internet.
The Asian cultures of the world have been using wooden cups for tea for over 2,000 years. A little research will reveal what woods they use.
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Ralph Fahringer
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Re: safe finish
Reply #10 - Mar 23rd, 2017 at 11:35am
 
I just googled that and found this site:

Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to Login or Register
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« Last Edit: Mar 23rd, 2017 at 11:35am by Ralph Fahringer »  

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John Normoyle
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Re: safe finish
Reply #11 - Mar 24th, 2017 at 9:34am
 
Does the inside have to be the wood?  I ask because for many people who make tea light holders they put a glass insert into protect the wood.  The same is often done for vases that will be used to hold water.  Can you get a small glass or ceramic insert and glue it in?  There are several options for the high heat if the insert is not clear, an auto parts store would have engine adhesive that can withstand the 200 degree temps, but they do not dry clear.
This might be a valid option if you can turn the lip so it is covered by the class or ceramic.  I hope this helps.
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John Cepko
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Re: safe finish
Reply #12 - Mar 25th, 2017 at 5:01pm
 
The description of the tea and coffee cups I looked at in the above link stated the items were finished with either lacquer, or poly.
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David Schuelke
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Re: safe finish
Reply #13 - Mar 25th, 2017 at 5:15pm
 
Sakura is actually a cherry tree, I have some local cherry, will give that a try, I think I will give it a tung oil finish, Thank you all for your responses.
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Len Mullin
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Re: safe finish
Reply #14 - Mar 27th, 2017 at 9:44pm
 
Ralph Fahringer wrote on Mar 23rd, 2017 at 9:05am:
...and so, based on that... hand washing means the temp of the water is only about 130º or so while the water for making tea is boiling or 212º which is even hotter than in a dishwasher.

Even if left to steep for a bit, the temp is still more than hand washing  temp. When I get my tea from DD or McD's, it is around 165º.

Do you think that the temp of hot tea is ALSO too hot for the wood?


No, I don't think that hot tea is too hot for a wooden cup. I think it is safe to pour hot tea into wooden cups, especially if the interior of the wooden cup has been coated with a protective coating. A brushed on two part epoxy, would be what I would use to seal the wood.
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