How do you prevent metallic taste in deep fried chips?

To prevent a metallic taste in deep-fried chips, ensure that your frying oil is fresh and of high quality, as old or reused oil can impart off-flavors. Use a deep-frying thermometer to maintain the correct frying temperature, which helps achieve a crispy texture and reduces the likelihood of the oil breaking down. Additionally, properly season the chips after frying and avoid using metal utensils that could react with the oil. Finally, make sure to drain the chips well to remove excess oil before serving.