In fact, they don't need to worry about how to reduce the greasy feeling, because they won't have a chance to eat greasy food at that time. /kloc-Europe in the 0 th and 6 th centuries was not as rich as it is now. At that time, because they had not figured out how to grow food, and the climatic conditions in Europe were very bad, there was very little edible food. At that time, there was often famine in Europe, people did not have enough to eat, and the streets were full of beggars begging along the street, which was very pitiful. It is a problem for them to fill their stomachs, not to mention how greasy food they will eat.
Besides, even if they eat, they eat bread. At that time, instead of having three meals a day, they could only eat one staple food every day, and the only staple food was just bread and water. At that time, the European governments in famine would give everyone a loaf of bread and a dollar. Without food and savings, the European people can only live on this only bread and a dollar. They can hardly eat meat. Sad bread can only be eaten by people with relatively rich families. Ordinary people even have luxury bread, so they have no choice but to beg.
Therefore, under the circumstances at that time, they don't need to worry about how to solve the greasy problem, but how to solve their own food and clothing problem. But you may ask, what are their own ways to solve greasy after their living conditions get better? In fact, as we all know, people in European countries like to eat salads, and those fresh vegetables and fruits can play a role in reducing greasy, and it is also possible to squeeze them into juice.