Related Experiment Video
Updated: Jul 12, 2026
05:49
Tracking Microbial Contamination in Retail Environments Using Fluorescent Powder - A Retail Delicatessen Environment Example
Published on: March 5, 2014
The Christmas Food Safety Citizen Science Project: Enabling Consumers to Ensure Safe Cooking Temperatures
1ZERO2FIVE Food Industry Centre, Cardiff Metropolitan University, 200 Western Avenue, Llandaff, Cardiff, Wales CF5 2YB, United Kingdom.
Journal of Food Protection
|July 9, 2026
Summary
Citizen science distributed temperature probes to UK consumers, improving safe cooking practices for large meats like Christmas turkey. Most participants adopted probes, ensuring safe internal temperatures and reducing foodborne illness risk.
Area of Science:
- Food Safety
- Public Health
- Citizen Science
Background:
- Turkey is a popular Christmas meat in the UK, but consumers often lack experience cooking large birds, increasing undercooking and foodborne illness risks.
- Consumer use of temperature probes, the best method for checking meat doneness (≥75°C), is very low.
Purpose of the Study:
- To distribute temperature probes to consumers via a citizen science project.
- To promote the safe cooking of Christmas turkeys and other large meat joints.
Main Methods:
- 1000 temperature probes were sent to volunteers recruited via social media.
- An online platform was used for participants to upload images and record cooking practices.
- Participant data on probe usage and meat temperatures were collected.
Main Results:
- 277 participants submitted 405 images, with 82% never having owned a probe before.
- 33% of initial checks showed meat below the recommended 75°C.
- 86% of those below temperature cooked further to reach ≥75°C; 92% found probes essential for food safety post-study.
Conclusions:
- Citizen science effectively engaged the public in food safety research.
- Distributing temperature probes promoted behavioral changes for safer cooking.
- The project demonstrated lasting impact on consumer food safety practices and public health.
Related Concept Videos
01:27Principles of Food Preservation
Food spoilage results from microbial growth, enzymatic activity, and environmental factors that gradually degrade the sensory, nutritional, and safety qualities of food. Preservation techniques aim to slow or halt these processes to extend shelf life and maintain product quality.A key concept in food microbiology is the microbial growth curve, which includes four phases: lag, exponential (log), stationary, and death. During the lag phase, bacteria adjust to their environment without significant...
01:29Sources of Food Contamination
Contamination of food by microbial agents and natural toxins poses significant risks to public health. These hazards can be introduced at various points across the food supply chain, ranging from environmental sources to processing and storage stages. Understanding these contamination pathways is critical for developing strategies to ensure food safety.Seafood is particularly vulnerable to contamination through both environmental exposure and microbial colonization. Toxins from harmful algal...
01:26Methods of Controlling Food Spoilage
Food spoilage is caused by microbial growth or by chemical and physical changes, all of which affect the taste, texture, and safety of food.Temperature-Based PreservationRefrigeration at 0–4 °C slows microbial growth and enzyme activity, making it ideal for short-term storage. However, certain spoilage organisms—such as psychrotrophs like Listeria monocytogenes—can still proliferate at these temperatures. Freezing below -18 °C further slows biological processes by forming ice crystals, which...
01:23Physical Methods for Controlling Microbial Growth: Temperature
Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...
01:28Pasteurization and Food Preservation
Pasteurization is a widely employed thermal processing technique designed to enhance the safety and shelf life of perishable food and beverages. By subjecting products to specific high temperatures for controlled durations, this method effectively inactivates pathogenic microorganisms and spoilage enzymes without significantly compromising sensory qualities. The technique has been pivotal in food safety management, especially for consumables susceptible to microbial contamination such as milk,...
01:30Hazard Analysis and Critical Control Points (HACCP)
Hazard Analysis and Critical Control Points (HACCP) is a science-based, preventive system used globally to ensure food safety by identifying, evaluating, and controlling biological, chemical, and physical hazards throughout food production. Originally developed by NASA and the Pillsbury Company for astronaut food, HACCP is now a core component of the Codex Alimentarius.HACCP operates on prerequisite programs—such as Good Manufacturing Practices (GMPs), sanitation procedures, and supplier...