A laboratory bain-marie is a device whose translation in Persian is known as “water bath” or “laboratory bath”. The reason for this name is that bain-marie acts like a hot bath filled with water and leads to the melting of materials. This device is one of the most widely used laboratory devices. In this article, we will talk about laboratory bain-marie and the points to be observed while using it.

Laboratory application of Ben-Marie

The application of this device is in various serology, pharmaceutical and industrial incubation tests. Also, this device has a reservoir that can be used to thaw frozen materials such as blood products. By removing the lid of this device, you can put your desired frozen chemicals inside the special compartment. There is a water tank under this stand.

Important points when using a laboratory bain-marie

• One of the most important points when using a bain-marie is that firstly, the bain-marie should not be lit without water, and secondly, you are allowed to use only distilled water to fill the bain-marie.
• The water inside this device should be changed regularly and if possible daily.
• In order to prevent damage to the device, the elements of the water bath must be cleaned regularly and if possible weekly so that no mass remains on it.
• Never place the laboratory bain-marie device in front of the cooler and strong wind flow.
• The volume of water inside the device should be considered based on what is written in its manual. A lower or higher volume of distilled water can damage the device and the device may not work normally. Normally, the water level should be between 4 and 5 cm from the top of the tank inside the bain-marie.
• Never use bleach, concentrated acid and salt, deionized water, or high chlorine solutions in a laboratory bain-marie.
• The environment where the laboratory Ben-Marie is to be placed must be away from the risk of ignition.

Characteristics of laboratory Ben-Marie

• Laboratory bain-marie can work at room temperature and finally up to 60 degrees Celsius; Otherwise, it is necessary to use a special coating for laboratory bain-marie.
• Ben Marie can work with 120 V electric current with 60 Hz frequency. If you use city electricity with 220 voltage, the frequency should be 60/50 for the device to work.
• The maximum temperature that a laboratory bain-marie can use to melt materials is 100 degrees Celsius.
• The volume of the Ben-Marie internal tank can be between 2 and 30 liters, depending on its type.
• A thermometer is connected to the laboratory bain-marie, which allows you to check and control the temperature of the water inside the device during the day.

Appearance characteristics of laboratory Bain-Marie device

This device includes a screen, a metal tank with its lid, an electric controller, a stirrer, and a thermometer. Controllers can have different functions according to the type of bain marie. Using the screen, you can set parameters such as temperature based on Celsius or Fahrenheit, and warning of temperature increase or decrease. Also, two keys to turn the device on and off along with a light to indicate the temperature unit (Celsius or Fahrenheit) are installed on the device.

The primary material of the laboratory bain marie is steel. The outside of this device is an external panel on which the indicated keys and control panel are located. The interior of the bain-marie consists of a tank that is coated with high resistance and is rustproof. Another device in some bain maries is a stirrer. The stirrer regularly stirs the water in the tank and leads to the uniformity of the water temperature.