Whether you go for stainless steel or plastic pet food containers, you can make use of these storages as long as you keep the kibble in an airtight container. The moment you open up the food bag, you expose it to air, which can eventually make it go rancid. People prefer plastic containers because they are lightweight and easy to carry. They make for a perfect option when travelling or regularly moving the container. Stainless steel, on the other hand, lasts longer, and it is quicker to clean. However, it does weigh more. To ensure the food’s freshness, many people go for a container with an airtight vacuum.