How do I clean a slow feeder bowl properly?

A flat bowl has one open surface a cloth can wipe in seconds, but a maze pattern has dozens of tight corners where wet kibble, saliva, and bits of food get pressed in as the dog eats. Left overnight, that residue turns into a sticky film that grows bacteria fast, especially in a warm kitchen. A quick rinse under the tap will not shift it; the bowl needs actual scrubbing at each channel intersection.

Soak the bowl in hot water with a drop of dish soap for 10 to 15 minutes right after the meal, before the residue dries on. Use a narrow brush, an old toothbrush, or a dedicated bottle brush to work along every ridge, then rinse under running water until no suds remain. Doing this after every meal takes under two minutes once it becomes routine, and prevents the buildup that is hard to shift once dried.

Stainless steel slow feeders and many rigid plastic ones are dishwasher safe, and the water jets reach into grooves that a hand wash sometimes misses, so a weekly dishwasher cycle alongside daily hand rinsing works well. Silicone bowls are also usually dishwasher safe but can trap water in deep ridges, so shake them out and air dry upside down. Check the base of the bowl for a dishwasher safe symbol before relying on it.