My Dishwasher Smelled Like Wet Dog. Here’s What I Did to Fix It

The one food item you're probably rinsing into your dishwasher could be the reason it smells like a wet dog. A recent CNET article reveals that starches such as rice, pasta, and potatoes are the culprits behind that persistent, musty odor.

Homeowners across the globe face a common kitchen frustration: opening the dishwasher only to be hit with a smell reminiscent of a wet dog. The issue stems from trapped food particles that bacteria feast on, producing foul-smelling gases. CNET's piece highlights a simple but overlooked mistake: putting starchy foods into the dishwasher.

Why does this happen? Starches expand when exposed to water and heat. They form a slimy residue that clogs filters, spray arms, and seals. Bacteria thrive on this starchy film, releasing volatile compounds that create the wet dog odor. Many people assume pre-rinsing dishes prevents smells, but in fact, pre-rinsing can wash starches into the machine's nooks where they accumulate.

The fix is straightforward: scrape leftover starches directly into the trash or compost, rather than letting them enter the dishwasher. Additionally, regular maintenance — cleaning the filter monthly, running a hot water cycle with vinegar or a dishwasher cleaner — can prevent odor buildup. CNET's tip is backed by appliance technicians who note that a clean dishwasher not only smells better but lasts longer.

Beyond starches, other common causes of dishwasher smell include grease, soap scum, and standing water. However, the wet dog odor is most strongly linked to bacteria acting on starchy residues. To tackle it, homeowners can also check the drain and ensure the dishwasher is level so water doesn't pool.

This small habit change — keeping starches out of the dishwasher — is an easy dishwasher smell fix that costs nothing. Combined with periodic deep cleaning, it can eliminate the need for harsh chemical deodorizers. The CNET article serves as a timely reminder that even modern appliances need mindful use.

Looking ahead, more homeowners may adopt this practice as the tip spreads through social media and word-of-mouth. Appliance manufacturers could also design filters that better handle starchy debris. For now, the solution is in your hands: trash the rice, save your dishwasher from smelling like a wet dog.