20 common cooking mistakes that ruin your food or healthBy Nish Rathor / February 17, 2025 13. Choosing the wrong types of potatoes If you want to make soft, smooth mashed potatoes, choose a variety that is high in starch, such as Russet or Yukon Gold. White and red potatoes will not make creamy masks. Source: Internet Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20