In the cold winter, PVC hot water bottles filled with hot water are the "favorite" for many people to keep warm. Especially for the elderly, children and office workers, holding them before going to bed to warm their hands and feet seems to dispel all the cold. Few people know that this "gentle" way of heating conceals a risk that is easily overlooked - low-temperature burns. Many people think that "as long as it doesn't hurt from the heat, it's fine", but it is precisely this perception that makes low-temperature burns a common hidden injury in winter.

Low-temperature burns are different from high-temperature burns. They are not severe injuries caused instantly but result from prolonged contact of the skin with a low-temperature heat source ranging from 40℃ to 60℃. This temperature range may seem "mild" and won't cause immediate burning pain, but once the contact time exceeds one hour, the tissues beneath the skin will gradually be damaged. For instance, if a hot water bag is directly applied to the ankle or waist before going to bed, or if an elderly person, due to their dull perception, keeps the hot water bag under their body all night without moving it, they may find redness, swelling, blisters, and even the skin color darkens and ulcers form at the contact site when they wake up. In severe cases, it may even damage subcutaneous fat and muscles, and the recovery process is slower than that of high-temperature burns.

It is particularly important to note that the high-risk group for low-temperature burns is precisely the group that relies most on hot water bottles: the elderly have a weakened skin perception ability and are less sensitive to temperature. Children have delicate skin and weak self-protection awareness. Patients who have been bedridden for a long time and office workers who feel sleepy when working late into the night are also prone to fall victim to "forgetting to move the hot water bottle". What is even more overlooked is that many people are accustomed to using old hot water bags or filling them with overly hot water (although the original intention is to "keep warm for a long time", it will cause the local temperature to remain persistently high). These behaviors all increase the risk of low-temperature burns.

In fact, preventing low-temperature burns is not complicated. First, control the temperature of the hot water bag. The water temperature is preferably around 50℃. After filling it, test the temperature first to avoid it being too hot. Secondly, avoid direct contact with the skin. You can put on a special flannel cover or wrap it with a towel before use. Most importantly, do not keep it fixed in the same place for a long time. When using it before going to bed, it is best to set a small alarm to remind yourself to move it every half an hour. When the elderly and children use it, family members should pay more attention.

The warmth of PVC hot water bottles is a comfort in the cold winter, but it is the "invisible harm" that needs to be guarded against even more. Only by attaching importance to low-temperature heating and mastering the correct usage method can this warmth be truly safe and considerate.

Changzhou Yuefeng Plastic Products Co., Ltd. specializes in the production of hot water bottle, PVC hot water bottle, hand warm hot water bottle, cold water sack, insert hot water bottle,,cervical spine hot water bag, plush hot water bottle.