Dr. Don and Professor Ben talk about the risks from not washing a pets water bowl for a week. Dr. Don - not risky ππΌ Professor Ben - not risky ππΌ How Often Should You Wash Dog Bowls for Food and Water? Clean the Germiest Home Items | NSF Pet feeding habits and the microbiological contamination of dog food bowls: effect of feed type, cleaning method and bowl material - PubMed Survey evaluation of dog owners' feeding practices and dog bowls' hygiene assessment in domestic settings | PLOS One