Specific duties of these technicians vary with their specialty.

Agricultural science technicians typically do the following:

• Follow protocols to collect, prepare, analyze, and properly store crop or animal samples
• Operate farm equipment and maintain agricultural production areas to conform to scientific testing parameters
• Examine animal and crop specimens to determine the presence of diseases or other problems
• Measure ingredients used in animal feed and other inputs
• Prepare and operate laboratory testing equipment
• Compile and analyze test results
• Prepare charts, presentations, and reports describing test results

Food science technicians typically do the following:

• Collect and prepare samples in accordance with established procedures
• Test food, food additives, and food containers to ensure that they comply with established safety standards
• Help food scientists with food research, development, and quality control
• Analyze chemical properties of food to determine ingredients and formulas
• Compile and analyze test results
• Prepare charts, presentations, and reports describing test results
• Prepare and maintain quantities of chemicals needed to perform laboratory tests
• Maintain a safe, sterile laboratory environment

Agricultural and food science technicians often specialize by subject area. Some popular subjects are animal health, farm machinery, fertilizers, agricultural chemicals, and processing technology. Duties can vary considerably with the specialization, because work settings may vary.

Agricultural science technicians who work in private industry typically focus on increasing the productivity of crops and animals. These workers may keep detailed records, collect samples for analyses, ensure that samples meet proper safety and quality standards, and test crops and animals for disease or to otherwise confirm the results of scientific experiments.

Food science technicians who work in private industry typically evaluate food and crops while investigating new production or processing techniques. They also ensure that products will be fit for distribution or are produced as efficiently as expected. Many food science technicians spend time inspecting foodstuffs, chemicals, and additives to determine whether they are safe and have the proper combination of ingredients.