Learn about Thermal Processing of Foods | Free Online Course | Alison

Diploma in Thermal Processing of Foods

Learn about how the thermal method is used in processing of food materials and products with this free online course.

Food Technology
Free Course
This free online course on thermal processing of foods explains in detail how a well designed method of food processing is quite important in achieving sustainable production of safe and nutritious foods. This course explains the strict public health considerations put in place to ensure quality production of food. By the end of the course, you will gain a great understanding of the several preservation methods used in the food industry.
  • Duration

    9-10 Hours
  • Assessment

  • Certification

  • Responsive

  • Publisher






View course modules


This free online course will begin by introducing you to microbial growth in foods and the potential impact of bacteria and viruses in food products. You will learn about blanching as a pre heat treatment applied to tissue systems of fruits or vegetables. You will also learn about how solid food particles can be pasteurized in different ways.

This Alison course then explains the stages of thermal processing establishment, the temperature distribution test and the factors that are considered for the heat penetration test. The course goes on to discuss in detail the effect of microorganims on food products, and and the factors that affect the microorganisms growth. In this course, you will learn about how to determine the activation energy and maximum temperature storage of food materials.

Finally, you will learn about aseptic process as a continuous thermal process that is used in the food processing industry. This course explains how microwave techniques were originaly designed for military use and were later deployed for industrial use. You will learn about extrusion as a process of central importance and widespread application in the food industry. You will also learn about 3A sanitary standards and other regulatory standards in the food processing industry.

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Introduction to Food Microbiology and Thermal Processing

Major Thermal Processes and Equipment

Heat and Temperature

Quality Attributes and Validation

Aseptic Processing

Novel Food Processing Technology

Diploma in Thermal Processing of Foods - First Assessment

Advanced Seperation Processes

Heat Exchanging Equipment

Extrusion Cooking

Biosensors and Nutraceuticals

Food Packaging Materials and their Properties

Sanitary Components and Regulatory Considerations & Special Lecture on Membrane Separation

Diploma in Thermal Processing of Foods - Second Assessment

Course assessment

Learning Outcomes

Upon successful completion of this course ,you will be able to:

  • Explain food micro biology and microbial growth and concerns in various foods
  • Determine how thermal processing is used to increase the shelf life of food products 
  • Distinguish between the two major thermal processes which happen in the food industry
  • Explain how formulated products varies from meat stews, dairy desserts and beer product
  • Determine the reasons why we do the temperature distribution and the heat penetration test 
  • Determine the best method to be used for the temperature distribution and heat penetration test
  • Discuss the critical conditions and measures used for ensuring aseptic conditions
  • Explain the convection and conduction phenomenon
  • Discuss how membrane separation process are used in food industries 
  • Explain extrusion technology and the equipment used for extrusion



All Alison courses are free to enrol, study and complete. To successfully complete this Diploma course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Diploma course, you have the option to acquire an official Diploma, which is a great way to share your achievement with the world. Your Alison Diploma is:

Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive for you to continue empowering yourself through lifelong learning

Alison offers 3 types of Diplomas for completed Diploma courses:

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