Regarding the ‘stone fruit’ wood/trees—- Just FYI, IF they do have arsenic in them (and I’m not sure if the stone-fruits do) arsenic is a ‘heavy metal’ and as such can NOT be removed from the wood by drying or baking the wood. If you were to completely burn the wood—if there is arsenic in it, it would still remain in the ashes even. I’m not sure that arsenic is really the problem. (?) However most of the stone fruits DO HAVE the main component of cyanide in their pits/stones.
Poisonous resins and phenols (in fir, pine, etc) can and will ‘bake out’, making them safe though. I’ve baked maple branches for our parrot in past (making perches, chew toys), and let me tell you—–the obnoxious smell coming from my oven was a bit nauseating to me. House was well-ventilated, but still I wonder if doing it outside (dehydrator? closed BBQ using indirect + low heat?) would’ve been better.
More questions than answers…..sorry. I’m still researching a good source for more info on this myself.
–Chris