I generally wash before eating rather than before storing so that it won’t impact the longevity. I wouldn’t worry about the organic sprays, the eco-oil is just a mix of plant oils and is safe to eat the vegies with no withholding period. If the organic fungacide is the eco-fungicide brand it is just potassium bicarbonate, very similar to bicarb-soda and can be used in cooking in much the same way so is definitely safe to consume.