Although cats change into cold-resistant "thick coats" in winter, it does not mean that cats can be avoided by the cold, especially cats who go out and young kittens, who are more likely to experience hypothermia.
Cats will freeze to death if they have no windows on the balcony. The breeder needs to keep the cat indoors. Although 10℃ will not freeze the cat to death immediately, it will cause the cat to catch a cold and become sick, and thus die.
In winter, breeders will not only keep their cats indoors. You also need to prepare a warm and comfortable cat nest for the cat. If conditions permit, you can turn on the air conditioner for the cat to keep warm for winter.
Feeders also need to supplement their cats with nutritional creams, dried fish and other fat-rich foods. And increase feeding once a day to allow the cat to accumulate enough nutrition for the winter.