NEVER store coffee beans or grounds in the fridge! If you do, your coffee will absorb moisture from the fridge (and the smell from that leftover fish). Instead, store your coffee in a cool, dark and dry space.
Do not use soaps or detergents! - Use clean potable cold water. - If the skin is thick, use a vegetable brush to help wash away hard-to-remove microbes. - Vegetables such as broccoli, cauliflower or lettuce (with lot of nooks and crannies) should be soaked for 2 minutes in cold clean water. - Put fragile vegetables in a colander and spray it with distilled water. - After washing, dry with clean paper towel, this can remove more bacteria.