Dish washing liquids solves the oils by means of cleaning agents they have. You can easily clear dried food residues by keeping them in warm water foamy with dish washing liquid for 5-10 minutes. You can have more foam if you apply 40 C water temperature compared dish washing water foam with the temperature of 20 C. Using warm dish washing water will make the detergent foam more and facilitate to remove the stains. If you keep water running during dish washing, excessive water and detergent shall be used. You can economize by using the amount of water and detergent stated in user manual of manufacturer. You can use dish washing container for this kind of application.
