In 2012, In-N-Out cut ties with a plant operated by the Central Valley Meat Company, which was closed by the U.S. Department of Agriculture after being exposed for cattle abuse.
The chain then switched to another supplier. Later, in 2016, many environmental and food safety advocates criticized the chain's burgers for using beef treated with antibiotics.
Then, in 2018, In-N-Out's beef was also graded "F" by consumer advocacy networks, including Consumer Reports, Public Interest Research Group, and Natural Resources Defense Council.