I can't THINK of two culture more different than China and Germany. Of course China HAS contributed to the world: bubonic plague, bird flus/Asian flu, to name a couple.
The Chinese have the biggest problem with cleanliness of their restaurants, hotels, homes, kitchens, etc. [NOT personal cleanliness]. This is so because cleanliness CO$T$ and one gets NOTHING for it.
Chinese restaurants get closed down the MOST in the West because of this. Their logic: why clean tonight when the restaurant will get JUST as dirty tomorrow?
I’ve noticed the cleanliness problem in many Chinese resturants. At the same time that it looked like they rarely cleaned the place, the BROILER looked new in every kitchen I saw. I’ve worked with those broilers and it takes an immense effort to keep them looking new day in and day out. Made no sense to me.