Stoutman wrote:

not sure if they add any chemical drying agents that could be toxic.

I have one toxic finish that's just about "not recommended for
chewing". I have to make it myself (lead dried boiled linseed) because
you can't even sell it any more.

These days, if they're selling a finish it's a major event if it has
the _slightest_ implication for toxicity. They're really just awfully
hard to find now.

Cobalt dried oils have _some_ concerns about the use of cobalt, but
this is magnitudes less serious than lead ever was. We might see moves
away from it in years to come, but it's certainly not a risk today or a
reason to get sandpaper out.