Bắp rang bơ “nổ” như thế nào?
Whether popcorn can be successfully “popped” out depends on the firmness of its skin, and whether it can effectively transfer external heat to the starch inside the grain. When the temperature rises, the moisture inside the kernels turns into steam and is gradually pushed toward the husk. When the pressure exceeds 200 degrees Celsius (400 degrees Fahrenheit), the husk bursts, and the starch and steam inside it expand and explode as the pressure inside and outside equalizes.
Các nhà khoa học cũng đã tìm ra cách để tăng gấp đôi kích thước của hạt ngô cuối cùng sẽ nổ. Nếu sử dụng máy bơm chân không để giảm áp suất của không khí bên trong máy bơm trong khi làm nóng hạt ngô, khi nó nổ, nó có thể nổ nhiều hơn bình thường.
Today, popcorn also enjoys a healthy reputation. While you may think of popcorn as a sweet, salty, butter-filled snack reserved for special occasions like movies or carnivals, it’s actually a whole grain food, low in fat and salt before it’s seasoned.
Post time: Th8 . 26, 2023 00:00