Wash the products thoroughly before first use and after each use. Use warm water, a soft sponge and mild detergent, or wash it in a dishwasher on a normal temperature setting (yes, even the bib).
For that perfect "new" look every time, we recommend hand washing & towel drying all silicone tableware. However, as busy parents, we all love using a dishwasher. It is entirely safe, but it sometimes leaves mineral and oil marks on the silicone. This is not harmful at all.