PHYSICAL STATE OF INGREDIENTS IN FOOD SYSTEMS Food Dispersions 1. True solution 2. Colloidal dispersion 3. Emulsion 4. Foam 5. Gel Dispersions 1. Continuous phase 2. Dispersed phase May be solid, liquid, or gas.PHYSICAL STATE OF INGREDIENTS IN FOOD SYSTEMS Food Dispersions 1. True solution 2. Colloidal dispersion 3. Emulsion 4. Foam 5. Gel Dispersions 1. Continuous phase 2. Dispersed phase May be solid, liquid, or gas