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Food safe finish - for the birds!

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Forum topic by Gadabout55 posted 03-06-2021 01:18 AM 295 views 0 times favorited 5 replies Add to Favorites Watch
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Gadabout55

52 posts in 2966 days


03-06-2021 01:18 AM

Hah, now that I got your attention … I’m making a bird seed storage bin for my wife. Wondering what’s a good choice for finishing the interior.


5 replies so far

View Nicky's profile

Nicky

711 posts in 5148 days


#1 posted 03-06-2021 03:25 AM

I would not finish the inside. My concern would be the out-gassing from the finish.

Food safe shellac may be a good choice.

-- Nicky

View Lazyman's profile

Lazyman

6936 posts in 2443 days


#2 posted 03-06-2021 03:32 AM

Almost any finish will work as long as you let it cure long enough before you file and close it. Walnut oil might be an obvious choice since even it if does transfer to the seel it would seem to be something they would not object too. Linseed or tung oil might be another one to consider if that is the concern.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View Wildwood's profile

Wildwood

2954 posts in 3191 days


#3 posted 03-06-2021 01:11 PM

No where in those CFR’s do they address wood finishing materials or products. Extracted pertinent information from Food Code:

FOOD CODE
U.S. Public Health Service
FDA U.S. Food & Drug Administration

https://www.fda.gov/media/110822/download
4-101.17 Wood, Use Limitation found on page 145
(A) Except as specified in ¶¶ (B), (C), and (D) of this section, wood and wood wicker may not be used as a food-contact surface.
(B) Hard maple or an equivalently hard, close-grained wood may be used for:
1. (1) Cutting boards; cutting blocks; bakers’ tables; and utensils such as rolling pins, doughnut dowels, salad bowls, and chopsticks; and
2. (2) Wooden paddles used in confectionery operations for pressure scraping kettles when manually preparing confections at a temperature of 110°C (230°F) or above.
(C) Whole, uncut, raw fruits and vegetables, and nuts in the shell may be kept in the wood shipping containers in which they were received, until the fruits, vegetables, or nuts are used.
(D) If the nature of the food requires removal of rinds, peels, husks, or shells before consumption, the whole, uncut, raw food may be kept in:
1. (1) Untreated wood containers; or
2. (2) Treated wood containers if the containers are treated with a preservative that meets the requirements specified in 21 CFR 178.3800 Preservatives for wood.

FOOD SAFE FINISHES: Article by Jonathan Binzen
https://www.finewoodworking.com/2006/08/01/food-safe-finishes

Woods like cedar a good choice for bird feeders.

-- Bill

View Gadabout55's profile

Gadabout55

52 posts in 2966 days


#4 posted 03-06-2021 05:54 PM

How do you feel about stain? I’m thinking about applying Zar Spanish Oak stain, inside and out. Then maybe shellac on the outside and shellac or BLO on the inside?

View Madmark2's profile

Madmark2

2511 posts in 1644 days


#5 posted 03-06-2021 07:02 PM

Shellac is by its nature food safe. Don’t use any material in a feeder that doesn’t occur in nature.

-- The hump with the stump and the pump!

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