Pretzel Moisture

Consistent Benefits of Moisture Control

Various stages of baking pretzels require proper moisture measurement and control. Pretzels can easily contain too much or too little moisture which wastes the manufacturer’s time and money as well as impacts the quality of the final product.

MoistTech’s sensor is coated in a food grade Teflon with a polymeric viewing window enabling manufacturers to improve product quality without any contamination.

  • Redcue Dryer Usage and Energy Costs
  • Proper Control of the Infeed & Dryer Exit
  • Better Quality Final Products
  • Consistency
  • 100% Product Inspection

MoistTech is very experienced with the requirements in the production of pretzels and snack foods.Our sensor calibrations, measurement wavelengths, algorithms and sensor optical requirements are pre-set at the factory. Typical accuracy is about ±0.1% moisture. Typical analog range is 0-10% moisture. The outputs can be adjusted to optimize PLC or recording requirements.


Unsurpassed in performance, our sensors can accurately measure  moisture within tenths of a percent of most applications


MoistTech sensors withstand the test of time and are low to zero maintenance


Rely on MoistTech’s NIR moisture sensors to never drift or need re-calibration


A moisture measurement system is essential for the production process and in some cases will pay for itself in less than 30 days

Where to Measure

By installing the MoistTech pretzel moisture sensor at the exit of the ovens, close to packaging, will allow the pretzels time to stabilize while cooling. The sensor should be installed several inches above the belt or screw conveyor so that a baker can continuously monitor the process and can control the moisture content either manually or automatically.

If the pretzels have gone through an oil spray, it is important to install the sensor at an angle to cut down any reflection from the oil coating.

If the sensor has to be installed close to the oven outlet where it will be susceptible to extreme heat conditions, it is necessary to cool the sensor with either air or water. Furthermore, if the sensor is located near an oil spray, it is necessary to clean the sensor’s optical window during regular routine cleaning.

What is the Solution?

MoistTech has studied moisture and its applications in manufacturing for over 40 years. That’s why we’re confident our moisture analyzers are a step above the rest. We’re constantly working to develop the latest, most advanced moisture testing technology—which is how the IR-3000 came about.

We’ve combined our decades of experience and knowledge with feedback from our industry partners to create a moisture sensor capable of taking instant, non-contact measurements of moisture, temperature, and other vital levels with the utmost accuracy. When it comes to moisture sensors, the IR-3000 is the most advanced system available.


Locate the point in the production process in which measuring moisture will be the most crucial and beneficial. Identify how you will use the moisture measurement data for improvements and if it will tie into your PLC.

Remember this could involve more than one installation point!


A closed loop process is achieved by incorporating a moisture measurement system into the manufacturing process. Developing a proactive solution to moisture control will avoid costly downfalls. 


MoistTech’s experts will assess your specific application with lab tests, calibrations and accuracy results to ensure our equipment will peform for you. All of our sensors are pre-calibrated prior to being shipped to create a plug-and-play operation for the end-user.


We offer service and support throughout the world for our moisture measurement sensors and would be happy to connect you with a rep in your area. Contact us today for more information!

Understand the Process

Snack food manufacturers strive to have the best finish products. During pretzel manufacturing it is important to know the moisture content after the oven outlet as they can affect quality and consistency, as well as the taste, appearance, stability and shelf life. Additionally, variation and excess moisture pretzels can result in discoloration and out of specification of product. Testing moisture during this time will allow adjustments to be made so that snack food manufacturers have the highest quality