Feed mixing is of fundamental importance in the industry, because if it is not well mixed, the animals may not enjoy all the benefits it provides when they feed. Tests must therefore be carried out to assess whether the mixing process is adequate, and how much a mixer can mix in the shortest possible time in order to be more efficient, generating less costs and increasing productivity. This study was carried out in a feed mill with the aim of increasing the size of the feed mix from 800 kg to 900 kg and reducing the mixing time from 4 minutes to 3 minutes, increasing productivity without losing the quality of the mix. For this test, Microtracers® was used, an analytical marker that serves to validate the feed mix as well as to assess cross-contamination between one beat and the next.