Fredrick the Great of Prussia was very, very keen for the Germans to adopt the potato and to eat it, because he realized that if you had two sources of carbohydrate, wheat and potatoes, you get less price volatility in bread.
Fredrick Agung dari Prusia sangat sangat ingin supaya orang Jerman menanam kentang, dan memakannya. Karena dia menyadari jika mereka punya dua sumber karbohidrat, gandum dan kentang, fluktuasi harga roti akan berkurang.