February 22 is known as Cook a Sweet Potato Day, and it’s a tasty way to mix food and science. Sweet potatoes are storage roots, meaning the plant keeps extra energy underground—like saving fuel for later.
That stored energy is mostly starch, which your body can break down for fuel. When you bake or roast a sweet potato, heat turns some of that starch into sugars, which is why the flavor becomes sweeter as it cooks.
There are many ways to prepare them: baked until fluffy, mashed until smooth, roasted into cubes, or sliced into fries. Each method changes the texture, even though it’s the same ingredient.
You can also notice the bright orange color, which comes from natural pigments plants make. Paying attention to changes in taste, texture, and color is a smart way to practice observing like a scientist—right in your kitchen.
That stored energy is mostly starch, which your body can break down for fuel. When you bake or roast a sweet potato, heat turns some of that starch into sugars, which is why the flavor becomes sweeter as it cooks.
There are many ways to prepare them: baked until fluffy, mashed until smooth, roasted into cubes, or sliced into fries. Each method changes the texture, even though it’s the same ingredient.
You can also notice the bright orange color, which comes from natural pigments plants make. Paying attention to changes in taste, texture, and color is a smart way to practice observing like a scientist—right in your kitchen.