On Jan 30, 7:36*pm, "'Mike'" wrote:
In general bonfire ash is beneficial, but what care must be taken when there
are 'unknowns'? Plastic vanishes, but metal survives in a twisted state
which can and has been removed. Mainly wood, paper, plant debris, but .......
?

Any comments and advice?

Mike

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Don't take life too seriously, you'll never get out alive
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The main thing to avoid burning are plastics, painted wood and
pressure treated wood.
The old fence posts, trellis etc. contains arsenic and copper.
Old paint often contains lead.
Some plastics burn down to form dioxins, equally deadly.
Once released into the soil they are there for good.