Yogurt experimental
【Experiment purpose】Verification of yogurt fermentation
【Order】
① We mixed milk with yogurt.We prepared two things which changed the ratio of yogurt and milk.
Yogurt : 75g Milk: 175ml
Yogurt : 25g Milk : 225ml
② We warmed it by lukewarm water(under30℃) from the outside.
The speed of fermentation will become quick if it warms.
However, a germ will weaken if it exceeds 30 ℃, and a germ will die if it exceeds 40 ℃.
③ We checked again 6 hours later.
An experiment is a success if all contents are yogurt.