Uploaded October 2020 | Updated September 2026, 2 hours ago
Understanding Emulsions: How They Work & How to Make Them Stable
What is an emulsion? Why do oil and water separate? And how do emulsifiers and high shear mixers help you create a stable, uniform blend?
This animated video walks through the fundamentals of emulsions—what they are, how they’re formed, and the science behind keeping them stable. Using everyday examples like salad dressing and mayonnaise, we break down the concepts in a clear, visual way before showing how industrial emulsions are produced with rotor/stator high-shear mixing.
🧪 What You’ll Learn
• Why oil and water naturally separate
• Why unstable emulsions separate over time
• How emulsifiers (like egg yolk, mustard, lecithin) keep droplets from coalescing
• Examples of O/W and W/O emulsions
• How rotor/stator high-shear mixers create fine, uniform droplets
• Best practices for adding phases and controlling stability
⏱️ Chapters
0:00 What is an Emulsion?
1:03 Role of Emulsifiers in Stabilizing Mixtures
2:08 Types of Emulsions and Their Applications
2:58 Techniques for Manufacturing Stable Emulsions
3:41 Best Practices for Emulsion Production
An emulsion is a mixture of two or more immiscible liquids—typically an oil-based phase and a water-based (aqueous) phase. Because these liquids naturally separate, energy is needed to break them into tiny droplets and disperse them into one another.
Simple emulsions fall into two categories:
• Oil-in-water (O/W) — oil droplets dispersed in an aqueous phase
• Water-in-oil (W/O) — water droplets dispersed within oils
But creating an emulsion is only the first step—keeping it stable is the challenge.
To prevent the phases from separating, you need an emulsifier, a molecule with a hydrophilic (“water liking”) end and a lipophilic (“oil liking”) end. Emulsifiers bind the phases together and prevent droplets from coalescing. Hydrocolloids like xanthan gum or guar gum can also help stabilize mixtures by increasing viscosity.
To produce a stable, uniform emulsion, you also need sufficient mixing energy. A high-shear rotor/stator mixer draws liquids into the workhead and forces them through a fine emulsor screen, reducing droplets to a controlled, consistent size. After a few minutes of high-energy mixing, the phases are finely and uniformly dispersed—creating a stable emulsion with excellent batch-to-batch repeatability.
To find out more about emulsions, visit our website: silverson.com/us/process/emulsifying
#Emulsion #Emulsifier #HighShearMixers #Silverson #MixingTechnology #FoodScience #CosmeticFormulation #ChemicalEngineering #Mayonnaise #XanthanGum #ProcessEngineering #Manufacturing #Science #OilandWater #IndustrialMixing #Animation
_________________________________
Stay Connected with Silverson Machines
🔔 Subscribe for more mixing innovations:
youtube.com/@silversonmachines
Follow us on LinkedIn for the latest updates & news:
linkedin.com/company/silverson-machines
Understanding Emulsions: How They Work & How to Make Them Stable
What is an emulsion? Why do oil and water separate? And how do emulsifiers and high shear mixers help you create a stable, uniform blend?
This animated video walks through the fundamentals of emulsions—what they are, how they’re formed, and the science behind keeping them stable. Using everyday examples like salad dressing and mayonnaise, we break down the concepts in a clear, visual way before showing how industrial emulsions are produced with rotor/stator high-shear mixing.
🧪 What You’ll Learn
• Why oil and water naturally separate
• Why unstable emulsions separate over time
• How emulsifiers (like egg yolk, mustard, lecithin) keep droplets from coalescing
• Examples of O/W and W/O emulsions
• How rotor/stator high-shear mixers create fine, uniform droplets
• Best practices for adding phases and controlling stability
⏱️ Chapters
0:00 What is an Emulsion?
1:03 Role of Emulsifiers in Stabilizing Mixtures
2:08 Types of Emulsions and Their Applications
2:58 Techniques for Manufacturing Stable Emulsions
3:41 Best Practices for Emulsion Production
An emulsion is a mixture of two or more immiscible liquids—typically an oil-based phase and a water-based (aqueous) phase. Because these liquids naturally separate, energy is needed to break them into tiny droplets and disperse them into one another.
Simple emulsions fall into two categories:
• Oil-in-water (O/W) — oil droplets dispersed in an aqueous phase
• Water-in-oil (W/O) — water droplets dispersed within oils
But creating an emulsion is only the first step—keeping it stable is the challenge.
To prevent the phases from separating, you need an emulsifier, a molecule with a hydrophilic (“water liking”) end and a lipophilic (“oil liking”) end. Emulsifiers bind the phases together and prevent droplets from coalescing. Hydrocolloids like xanthan gum or guar gum can also help stabilize mixtures by increasing viscosity.
To produce a stable, uniform emulsion, you also need sufficient mixing energy. A high-shear rotor/stator mixer draws liquids into the workhead and forces them through a fine emulsor screen, reducing droplets to a controlled, consistent size. After a few minutes of high-energy mixing, the phases are finely and uniformly dispersed—creating a stable emulsion with excellent batch-to-batch repeatability.
To find out more about emulsions, visit our website: silverson.com/us/process/emulsifying
#Emulsion #Emulsifier #HighShearMixers #Silverson #MixingTechnology #FoodScience #CosmeticFormulation #ChemicalEngineering #Mayonnaise #XanthanGum #ProcessEngineering #Manufacturing #Science #OilandWater #IndustrialMixing #Animation
_________________________________
Stay Connected with Silverson Machines
🔔 Subscribe for more mixing innovations:
youtube.com/@silversonmachines
Follow us on LinkedIn for the latest updates & news:
linkedin.com/company/silverson-machines
