Thankfully, deep-cleaning a washing machine is straightforward and can be done with store-bought products or DIY formulas. This is why it is crucial to keep your washing machine clean and odour-free. A simple step-by-step deep-cleaning guideMaintaining a clean washing machine is a straightforward task. Deep-cleaning your washing machine at least once a week or bi-weekly if you use it often. With just a little vinegar, washing machine cleaner, and some elbow grease, you can do it.