I was about to start a new thread with my question, but these comments
on paint and stain lead right into . . .
What's the latest info on paints/protectors/preservers that are "safe"
for use around food plants, children's play equipment, etc. My old
raised bed sides of 2x12 spruce have reached the end of their useful
life as they crumble away from the beds. They lasted about ten years,
which was longer than I had expected. I'm replacing all beds with 6x6
cedar, which is a local (to me) wood and is supposed to have good rot
resistant qualities, and is also reasonably priced, 8 footers for 10
bucks each. My initial plan was to use the wood unprotected, but now
I'm wondering what kind of life should I expect and would it be worth
my extra time and expense to add a few coats of something to extend
the life. And the grandchildren, the cats and dogs, and the health
conscious friends want to know "what's in that stuff and is it safe?"

-- Mister Gardener
Maine Coast Zone 4-5