Introduction

Hot water bottles are designed to provide warmth and alleviate discomfort caused by cold. However, if the water temperature is not appropriate, they can fail to provide warmth and may cause safety risks such as burns. The right water temperature is crucial for the safe and effective use of hot water bottle.

BS 1970:2012 standard clearly states：”When filling this hot water bottle, do not use boiling water" Boiling water is generally 100 degrees Celsius (℃). Why should hot water bottles not be filled with boiling water?

Here are several reasons why hot water bottles should not be filled with boiling water:

Material

While PVC material has good heat resistance, the high temperature of 100℃ may exceed its safe usage temperature range. Prolonged exposure to high temperatures can cause the material to soften or deform.

Safety

Boiling water has an extremely high temperature. If the hot water bottle has tiny damages or is not tightly sealed, the leakage of boiling water could cause severe burns.

Insulation Effect

Hot water bottles are designed to provide long-lasting warmth at an appropriate temperature. Using overly hot water can accelerate heat dissipation, thereby reducing the insulation performance.

Product Lifespan

Continuous exposure to high temperatures can accelerate the aging of the hot water bottle material, shortening its lifespan.

Heat Conduction

Hot water bottles provide a comfortable heat sensation at appropriate temperatures. Boiling water can cause burns and affect the user experience.

What is the ideal water temperature for hot water bottles? The water temperature for filling hot water bottles should be controlled between 60℃ and 70℃. For the elderly, children, or patients with low sensitivity, they should use a hot water bottle cover to prevent low-temperature burns. Avoid using boiling water to extend the lifespan of the hot water bottle and prevent premature aging.

Right Usage Method

· When filling the hot water bottle, the water volume should be controlled to two-thirds of its capacity to leave space for exhausting air.

· Before tightening the stopper, ensure that the air inside the bag is exhausted.

· Before use, check the seal of the stopper to ensure there is no risk of leakage.

· To extend the heat retention time, a hot water bottle cover can be added outside the hot water bottle.

· After use, the water inside the hot water bottle should be emptied immediately. Blow air inside to prevent the inner walls from sticking, then hang it upside down to dry, maintaining the good condition of the hot water bottle.