<<Disclaimer: Verify this information before applying it to your situation.>>
I just spoke with a representative of the Humphrey Charcoal Corp. They have
two types of charcoal...both hardwood. The "pure hardwood lump" is 100% wood
and contains no additives. the hardwood briquettes contain corn starch as a
binder. He does recommend that, just to be safe, we use the pure hardwood
version. Happy grilling.
Jo