Ceramic and Metal Bowls are durable and can help keep food fresher for longer since bacteria is less likely to breed on the non-porous surface Ceramic and metal bowls are some of the most common types of pet food bowls. Ceramic bowls. Metal bowls are also very durable but some pets may be bothered by the sound and feel of their nails clicking against the surface while eating. Both ce... https://samadhancmi.livepositively.com/the-evolution-of-pet-feeding-vessels-a-history-of-pet-food-bowls/new=1