Rheology

• Introduction
• Rheo-what?
• Rheology in the Real World

• Viscosity and Yield Values

• Simple vs. Complex Fluids

• Expressing Viscosity and Yield Values

• The Importance of Rheology in a Chocolate Plant

• Rotational Rheometer

• Rheology of Simple Liquids

• Rheology of Complex Liquids

• Flow Curves of Different Chocolates

• More Types of Measuring Equipment

• Amount of Fat

• Types of Fat

• Water/Moisture Content

• Emulsifiers - Small Molecules, Great Impact

• Chocolate Fineness

• Temperature

• Practical Effects of Rheology and Other Factors

• Recommendations for Different Final Products

• Conclusion & Summary of Key Points
• Final Quiz
• Your Personalised Course Certificate

After completing this course, you won’t be focused on making specific chocolate products—you’ll gain a deep, scientific understanding of how chocolate behaves. You’ll be able to interpret and explain chocolate flow properties, understand why different chocolate recipes behave differently, and confidently discuss rheology using accurate technical language.

You’ll learn how chocolate flow is measured and quantified, how composition affects consistency and performance, and how this knowledge supports better decision‑making in product development, quality control, process optimization, and application selection. By the end, you’ll be equipped to analyze chocolate behavior critically and apply theoretical insights to real‑world chocolate challenges with greater precision and confidence. 

Our expert instructors will discuss the different types of equipment used to measure chocolate rheology, but you will not need any special equipment to complete this course, other than a curious mind!

Yes, you can watch the lessons at your own pace. The course is divided into short videos totaling around 2 hours, and you’re free to pause, resume, and revisit the content anytime during your access period.

While the online courses don’t include a live Q&A, we’ve anticipated many common questions, and the instructors address key tips and potential pitfalls in the videos. Our Technical Services team is happy to answer additional questions. Simply email us at the address listed below and we will forward your inquiry to them. 

If you experience any technical issues with your account or the website, such as problems with login or payment, feel free to contact us at digital_chocolate_academy@barry-callebaut.com.

This online course comes with several video lessons, quizzes, a comprehensive workbook that includes theoretical background, plus the charts and graphs used in the videos. 

After finishing, you will get your digital and personalised course certificate.

At the moment, access can be purchased for individual users only. If you’re interested in providing full access for multiple team members, please contact us at digital_chocolate_academy@barry-callebaut.com with your company name and the number of accounts required, and we will get back to you.

You can cancel your Full Access Subscription at any time by clicking “Manage my online course subscription” in your account navigation menu. Your cancellation will take effect at the end of your current billing cycle, unless otherwise stated. A confirmation email will be sent once your cancellation is complete.

Before your subscription renews, we will send two email notifications to the email address associated with your account. Each notification will include the option to cancel your subscription using the process described above.

If you purchase Single Course Access, no cancellation is required or available. Your access will automatically expire after 6 months.