What is a Water Bath (Benmarie)?

Water Baths, commonly known as Benmaries, are devices designed for maintaining and controlling the temperature of liquids within a specific temperature range, especially used in laboratories and industrial applications. These devices enable the execution of various experiments and tests by keeping liquids or samples at specific temperature conditions. They play a significant role in laboratory equipment used in fields such as chemistry, biology, the food industry, medicine, and similar areas.

The inner containers of water baths are typically made of stainless steel to ensure homogeneous heating of the liquid, incorporating various design features.

Operating Principle of Water Baths

Water baths consist of a heating element, thermostat, and temperature sensor. The water inside the water bath is maintained at a specific temperature set by the thermostat.

Points to Consider When Choosing a Water Bath

When selecting water baths, it is essential to pay attention to the following factors:

  1. Temperature Range: The water bath should provide the required temperature range for specific applications. A commonly used range is 30°C to 100°C.

  2. Precision: Water baths with high precision temperature control are preferred for sensitive experiments.

  3. Capacity (Internal Volume): Choosing a liquid container with an appropriate capacity based on application needs is crucial.

  4. Material Quality and Design: Water baths typically have an inner structure made of stainless steel for chemical resistance, hygiene, prevention of rust, easy cleaning, and long life. Design-wise, attention should be given to the visibility of heating resistors responsible for heating, as their visibility may affect the stability of samples placed in the water bath. If possible, the liquid container should be made from a single-piece material.


In the images above, you can see the inner container of Labo Water Bath models. Unlike many other brands, Labo prefers oval designs over sharp corners and edges in the inner container. This design ensures a more hygienic device after cleaning. Additionally, all equipment, such as heating resistors and temperature sensors, is concealed beneath the container, providing easy surface cleaning and homogeneous temperature distribution at every point.

Industrial Applications of Water Baths (Benmaries)

Water baths find a wide range of applications in various industrial sectors. These sectors include:

  1. Chemical Industry: Used for controlling reactions in chemistry laboratories and ensuring temperature stability in various chemical experiments.
  2. Medicine and Health: Utilized in biological tests, blood banks, pharmaceutical production, and biotechnology laboratories.
  3. Food Industry: Important for temperature-controlled solutions in food production processes such as fermentation and fermentation.
  4. Metallurgy: Used for metallurgical analyses and material testing.
  5. Education and Research: Serve a broad range of applications in universities, research institutions, and educational laboratories.

Water baths play a vital role in various fields, from laboratories to industrial facilities, with their broad application areas and different feature options. When making a choice, selecting a model that meets specific needs is critical for long-term efficiency and reliability.

Labo BMS-90 and Labo BMS-200 models are specially developed by Labo's R&D engineers to meet water bath requirements.


Labo BMS-200 (20 lt.)



Labo BMS-500 (50 lt.)



For detailed information about Labo Water Baths, you can contact our project engineers at info@labo.com.tr or call us at +90 216 329 11 77.

In this article, we have extensively covered the fundamental features and industrial applications of water baths. We hope this information guides you in the water bath selection process and provides an opportunity to benefit from Labo A.Ş.'s expertise in temperature control solutions for over 40 years.