Why don't Germans cut potatoes and fish with a knife?

In Germany, cutting potatoes with a knife is considered impolite. Instead of using a knife, Germans prefer to smash potatoes with a fork to make more room for gravy. Germans cut fish, potatoes, and other similar foods with the side of a fork rather than a knife to indicate that the food was tender and properly cooked. It is considered wasteful to leave food on your plate.

Do not use a knife to cut potatoes or dumplings (suggests food is not tender). If you are taking a break during the meal, but would like to continue eating or would like more food, cross the knife and fork on your plate with the fork over the knife. Germans don't tend to stay long after dinner.

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