New Immigrants and Old. Americans at the turn of the century were alarmed about what they perceived as a change in the type of immigrants entering the United States. Some of the traits they saw as distinguishing the new immigrants from the old immigrants were real; some were imagined; some were half-true. The old immigration peaked in the 1880s. The new immigration peaked in 1907.
It is absolutely OK to filter and reuse deep-fry oil. It's not uncommon at some short-order restaurants for them to filter the oil daily and only change it once a week. Of course, it does start to taste a little off when you reuse it that many times.
Most liquid cooking oil is a better option than butter or margarine, but some types of cooking oil are healthier than others. What makes a cooking oil healthy or unhealthy is the amount and type of fat it contains. Healthy cooking oils are high in monounsaturated fats, which are some of the healthiest types of fats and may help lower blood cholesterol levels. Cooking oils may also contain polyunsaturated fats, which are also healthy and can help improve heart health. Start your cooking oil selection with plant-based oils like: