Mandarin Essential Oil This fruit & vegetable wash removes residual pesticides, oils, waxes and agricultural chemicals from fruit and vegetables, and leaves no aftertaste. Even organically grown produce is vulnerable to the effects of drift spray, human handling, mold spores, and dirt. A simple rinse may not suffice. Koala Eco’s biodegradable and eco-friendly plant-based formula cleans produce without the need for anything toxic.