Food engineering is a multidisciplinary field that combines science, engineering, and microbiology to develop food and agricultural products and processes. It involves genetically modifying crops and livestock to grow faster/bigger and produce more in less space. However, there are concerns that food engineering technologies have not been adequately tested for safety, are not precise enough, and can lead to pesticides in crops and animal cruelty from factory farming practices. While companies claim it can address world hunger and costs, critics argue it has instead removed nutrients from food and increased corporate profits without lowering consumer prices.