The color becomes light brownish yellow, the sugar solidifies, and the chewing is crunchy and hard.

The method of simmering the sugar:

1. Wash the pot, add sugar, put in a little water, and slowly simmer.

2. Put a little water in the pot, put the rock sugar (white sugar) into it, and slowly simmer until the rock sugar dissolves, and after it dissolves it starts to slowly start bubbling up.

3. Big bubbles slowly turn small bubbles, the color gradually become yellow, the way to keep stirring.

4. When the sugar slowly turns yellow, turn down the heat and use chopsticks to test whether it meets the requirements. When the color becomes light brown, dip the chopsticks through the syrup, quickly into the cool water, remove, if the sugar is solidified, chewing brittle, it is boiled successfully.

Note:

Sugar can be boiled both oil and water, if the water is slightly different.

Sweet potatoes should not be eaten with persimmons, tomatoes, white wine, crabs, bananas.

Gastric ulcer, hyperacidity, diabetics should not eat.