Cola bottle can grow bean sprouts for the whole family. That's the safety.

Step1:The coke bottle poked some holes.
Step2:Cut off the top.

Step3:The selected mungbean is bubbled for 8 hours.

Step4:The soaked mung beans swell into little white spots.

Step5:Put the soaked mung bean into the bottle. Press a wet cloth on the mung bean (so that the mung bean sprouts won't be thin). If you are afraid of water leakage, put a small plate under it.

Step6:Then cover the black bag and put it in a cool place.

Step7:Water once in the morning and once in the evening. Water on the first day.

Step8:Water the next day.

Step9:On the third day, did you see a bean sprout trying to sneak out?

Step10:On the fourth day, gently wash the bean sprouts in a water basin. Stir fry them and you can eat them.
Cooking tips:There are skills in making delicious dishes.