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The Chemistry of Irish Cream Liqueur
Irish Cream Liqueur in 2026 is a masterclass in "Emulsion Stability." The product is a complex mixture of aged Irish whiskey, dairy cream, and sugar, which must be stabilized to prevent the separation of fats and the precipitation of alcohol.
High-Shear Homogenization: To achieve a shelf-life of over 18 months without refrigeration, the dairy and alcohol are processed through high-shear mixers that break fat globules down to less than 1 micron in diameter.
Casein Interaction: Sodium caseinate (a milk protein) acts as the primary emulsifier, wrapping around the fat droplets to prevent them from "coalescing" or rising to the top.
Plant-Based Alternatives: 2026 has seen a surge in "Oat-based" Irish Creams, utilizing enzymatically treated oat milk that mimics the mouthfeel and viscosity of traditional heavy cream while remaining vegan-friendly.
