Expansive sugar micro-baked snacks

Composition:

Brown sugar, the second grain of sand, baking soda, a spoonful, chopsticks, oven, water and plates.

Steps:

1. Please operate in a well-ventilated place.

2. Mix the brown sugar with the second grain of sand at the ratio of 1: 5, and pour it into a tablespoon, which is about half the amount of the spoon.

3. Add water to a tablespoon to drown the sugar noodles.

4. Put the spoon filled with water into the box oven for heating. First, the sugar in the spoon is dissolved, and heating is continued until the syrup begins to turn reddish brown (you can put a small pot of water next to it, and the syrup can be taken out without spreading.

5. Remove the spoon from the fire, stir with chopsticks for about 3-5 seconds, then immerse the chopsticks in baking soda powder and stir in the spoon until the syrup in the spoon changes color (the color will turn light brown) (as shown in figure 1). At this point, continue to stir and slowly pull out the chopsticks (when the syrup expands, the chopsticks are completely pulled out) until the expansion stops.

6. After the expansion stops, put the spoon in a small fire and bake it to make the sugar at the bottom dissolve again (as shown in Figure 2), and pour the expanded sugar into the plate.

Principle:

1. Try to wet the powdered sugar particles by heating, and turn them into molten syrup.

2. sodium bicarbonate NaHCO3, also known as "baking soda" and "baking brine"; Because sodium bicarbonate is decomposed by heat, it will produce carbon dioxide gas, so in baking affairs, food can be expanded by the carbon dioxide produced.

3. The chemical reaction formula of baking soda after heating is: 2 sodium bicarbonate → carbon dioxide +H2O+ sodium carbonate.

4. The carbon dioxide gas produced by the reaction is that the molten syrup expands before hardening and becomes fluffy "expanded sugar"

Nutritional value:

Baking sugar is made of granulated sugar and baking soda. It is sweet and delicious, rich in nutrition, and has the effect of invigorating stomach and promoting digestion. This is a kind of food suitable for all ages.

Words of exhortation:

1. Ask parents to guide their children to observe the changes after adding baking soda to syrup. The color of syrup will fade, and then it will swell slowly. )

2. After the swollen sugar is cooled, pull it out and observe its internal structure. Because of the existence of carbon dioxide, there will be many small holes.

Appear in animation:

Cherry Maruko 772B [Meihuan homemade dessert full of love]

Our home is 109B [sugar will swell, but it won't].

Note: Common Japanese snacks often appear in summer festivals and other activities.

In the second volume of the comic book "Poor Childe", Taro Yamada cooked sugar as a reward for White Festival.

From: Baidu Encyclopedia

The spoon doesn't need to be too big, it should be fine. There must be a spoon.