Conventionally raised beef is often finished in feedlots on moldy grains, pesticides, plastic, or food waste.

“this beef is sometimes fed grass for part of its life but it is finished for the last few months of its life in a feed lot in clustered conditions where cows are kind of pooping and peeing on each other it's just kind of dirt underneath where they're standing it's not grass and they're fed grains and those grains can often be moldy full of pesticides government allows those grains to contain plastic sometimes it allows those grains to contain food waste”