3 simple tips to measure water temperature without using a thermometer at home

There are many ways to measure water temperature without using a thermometer. The following article will guide you to 3 tips to measure water temperature without using a simple thermometer at home.


1 Using palm and elbow

Step 1 : Keep your hand close to the water. If you feel the heat coming out of the water, even a little burning, this indicates that the water is hot. If you feel no heat coming up, the water is at room temperature or cold.

Giữ bàn tay của bạn gần mặt nước

Note that, just put your hands on the surface, do not put your hands directly into the water to avoid burns.

Step 2 : Dip your elbows in the water. If the water container is large enough, dip one of your elbows in the water. This will let you know instantly whether the water is hot or cold.

Nhúng khuỷu tay của bạn trong nước

Avoid putting your hands in water of unknown temperature, as you could burn yourself.

Step 3 : If you put your elbow in the water or 5-10 seconds , you will be able to perceive what temperature the water is at. If the water feels warm, but not hot, it's about 38°C .

Để 5-10 giây

2 Check the coldness of the water

Step 1 : If your water is in a glass or metal container (like a thermos or pot) and you notice condensation starting to form, you know the water is colder than the surrounding air. around.

 Sự ngưng tụ bắt đầu hình thành, bạn sẽ biết rằng nước lạnh hơn không khí xung quanh.

Simply put, condensation will form faster when the water is much colder than the air temperature.

If you notice that condensation forms on the outside of the glass for 2 or 3 minutes , the water inside is very cold.

Step 2 : Notice if ice starts to form. If the water in the container is getting very cold and begins to freeze, you will notice that a small layer of ice has begun to form around the edges.

Nước bắt đầu đóng băng sẽ ở rất gần mức 0°C hoặc ấm hơn trong khoảng 1 đến 2°C.

The water that begins to freeze will be very close to 0°C or between 1 and 2°C warmer.

Step 3 : Check if the water is frozen. If the water is frozen (to solid ice), the temperature of the water is at or below 0°C .

Kiểm tra xem nước có bị đóng băng không

3 Measure temperature based on bubble size

Step 1 : When the water starts to heat, small bubbles form on the bottom of the pan or pot, now the water is about 71°C . The bubble is now considered the size of the shrimp's eye.

 Các bong bóng nhỏ bắt đầu hình thành dưới đáy chảo hoặc nồi

Step 2 : If the water continues to heat up, the bubbles at the bottom will grow until they are slightly larger than their original small size. This is a good sign that your hot water is near 79°C .

Các bong bóng ở phía dưới sẽ phát triển cho đến khi chúng lớn hơn một chút

Light steam will also begin to rise from the hot water when it reaches 79°C . Bubbles of this size are called crab eyes.

Step 3 : The bubbles on the bottom of the pot will continue to increase in size, and eventually begin to rise to the surface of the water. At this point, the water will be around 85°C . When the water reaches this temperature, you should be able to hear a soft gurgling sound from the bottom of the pot.

Các bong bóng dưới đáy nồi sẽ tiếp tục tăng kích thước, và cuối cùng bắt đầu nổi lên trên mặt nước

The first bubbles begin to emerge on the fish-eye-sized surface.

Step 4 : Larger bubbles from the bottom of the pot will begin to rapidly rise to the surface, forming a continuous series of rising bubbles. The water at this stage will be between 91 and 96°C .

Các bong bóng lớn hơn từ đáy nồi sẽ bắt đầu nhanh chóng nổi lên bề mặt

As soon as chains of bubbles like pearls form, the water will reach 100°C and boil.

Above are 3 tips to measure water temperature without using a simple thermometer at home. Hopefully the above information will help you easily identify the temperature of hot and cold water more easily!