I am not from Iowa, but that isn't stopping me! Call your local or state health inspector and talk thier ear off. Free advice from the folks that are going to be inspecting you isn't a bad thing.
However, a lot of folks simply bring their BBQ to work and let everybody sample it and then let it be know it is for sale. Is this legal???? Don't know, but a lot of folks do it to build up their comp accounts.
KCBS CBJ 9831
Large Spicewine, Backwoods Smoker (Party), WSM, Oklahoma Joe's Offset, Wood Fired Oven