How do you know if mill worms are in your cake box mix?

To check for mealworms in your cake box mix, inspect the mix for any visible signs of small, brown, or black larvae or adult beetles. Additionally, look for webbing or clumping, which may indicate infestation. If you notice any unusual odors or textures, it's best to discard the mix to ensure safety. Always store dry goods in airtight containers to prevent pest infestations.