I'm mildly gluten intolerant, I can eat a slice of bread here and there and not get sick but like if I eat say 4 slices of bread I get chest pains, migraines, etc. My Aunt though is a really sensitive Celiac, crumbs will make her sick. I've been thinking of what to give her for Christmas this year and I thought I'd do something different by either make one of those food mixes in a jar or bake something. I'm wondering what I need to do to avoid cross contamination? Unless this is something you avoid doing when someone is really sensitive?