A technical introduction to the measurement of Scoville Heat Units and FoodSense

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Revolutionizing Scoville Heat Unit Testing with Handheld Electrochemical Sensors
Introduction
Welcome to our exploration of a groundbreaking method for the rapid determination of Scoville Heat Units (SHU) in chili-based products. This innovative approach shifts away from relying on large, expensive third-party instruments to using compact, handheld devices for food quality assessment. Developed at the University of Oxford and commercialized by Zimmer and Peacock (ZP), this technology promises a faster, more efficient, and cost-effective solution for quantifying the heat in chili products.
The Need for Accurate Heat Measurement
For manufacturers and quality managers dealing with chili powders, chili oils, chili flakes, and related products, understanding the capsaicin content-the compound responsible for chili's heat-is crucial. Variations in capsaicin levels can lead to inconsistent consumer experiences, with products being too mild or too hot. Traditional methods of measuring capsaicin, such as High-Performance Liquid Chromatography (HPLC), are time-consuming, costly, and often lack transparency.
Traditional Methods: The Limitations
The first attempt to quantify chili heat objectively was made by Wilbur Scoville in 1912 with an organoleptic test. This method involved diluting chili samples until the heat could no longer be detected by taste, which was both labor-intensive and subjective.
Fast forward to 1995, and HPLC became the standard. This method, while more accurate, involves extensive sample preparation, chemical extraction, and calibration processes. Samples are sent to laboratories, where they undergo a series of procedures before results are reported back-a process that can be both slow and expensive.
Enter Electrochemical Sensors
The new paradigm introduced by Zimmer and Peacock leverages electrochemical sensors for rapid SHU determination. This technology, based on research from Professor Richard Compton at Oxford University, employs a technique known as cyclic voltammetry to measure capsaicin levels.
How It Works
Sample Preparation: Only 50 microliters of the sample is needed, making the process efficient and cost-effective.
Electrochemical Detection: The sample is applied to the sensor, which uses cyclic voltammetry to generate a distinctive electrochemical signal. This signal is analyzed to identify and quantify capsaicin content.
Data Analysis: The technology detects capsaicin through three characteristic peaks in the voltammogram. The height and area of these peaks correlate with the capsaicin concentration, providing both qualitative and quantitative analysis.
Practical Applications and Demonstration
Zimmer and Peacock's handheld device, now in its fourth generation, has been tested extensively across various chili products, including spicy mayonnaise, chili oils, hot sauces, purees, powders, and even chili-infused vodkas. The device is controlled via an app available on both the Google Play Store and Apple App Store, which communicates with a cloud system for data storage and analysis.
During a live demonstration, a sample of chili-infused vodka was tested. The device quickly provided a Scoville heat unit measurement, demonstrating its efficiency and ease of use. Results are instantly displayed on the app, with all data, including the raw electrochemical signals, stored in the cloud for traceability and further analysis.
Advantages Over Traditional Methods
Speed and Efficiency: The electrochemical sensor provides rapid results, enabling real-time quality control.
Cost-Effectiveness: Eliminates the need for expensive laboratory equipment and extensive sample preparation.
Transparency and Traceability: All test data is stored in the cloud, ensuring complete transparency and easy access for verification.
Conclusion
The adoption of handheld electrochemical sensors represents a significant advancement in the food industry's ability to measure chili heat. This technology not only speeds up the testing process but also makes it more affordable and transparent. By leveraging this innovative solution, manufacturers can ensure consistent product quality and enhance consumer satisfaction.
For more information or inquiries about this technology, please reach out to Zimmer and Peacock.

[@PAOLOHAON]

Very informative video! :)
Are the QR codes included when acquiring the device?
Can the device be connected directly to the PC via usb, instead of needing a mobile app + bluetooth ?

[@zimmerpeacock9703]

please post foodsense questions in the link so the team can pick them up - www.foodsensetechnology.com/contact-us