Mix vinegar and maltodextrin at a 1:1 ratio

Spread mixture thinly onto dehydrator trays

Dehydrate at 95-115°F until completely dried out

Process in a blender or food processor into fine powder

Soak breadcrumbs, cornstarch or flour in vinegar

Spread thinly onto a baking sheet

Bake at 200°F, stirring periodically, until crispy and dry

Grind into powder

Simmer vinegar and baking soda to reduce volume

Continue reducing over low heat, adding more vinegar until thickened

Spread paste onto a baking sheet

Finish drying out in a 200°F oven

Grind into powder