Eliminating Surface Dots in a Powder-Based Whipped Cream

I have developed a powdered non-dairy creamer used to prepare a cold-processed whipped cream/frosting system. The product currently performs well in terms of whipping ability, firmness, aeration, freeze-thaw stability, and overall shelf-life performance. However, the finished cream still exhibits small visible particles or “dots” on the surface that negatively affect its appearance and perceived quality. The objective of this project is to identify the root causes of these particles and develop a solution that eliminates them without compromising the current performance of the system. Through extensive testing, I have identified one major source of the issue: the 5% sodium caseinate used in the creamer formula. When using a roller-dried sodium caseinate, the finished cream develops noticeable particles, but the foam structure, firmness, and stability are excellent. When replacing it with a spray-dried sodium caseinate, the particles are reduced dramatically and the cream becomes much smoother, but the resulting foam is less firm and less stable. I have also identified a secondary source of particles within the formulation: a gum system consisting of CMC, xanthan gum, and guar gum, which together represent approximately 0.25% of the total formula. While these ingredients appear to contribute to the issue, their impact is believed to be significantly smaller than that of the sodium caseinate. The ideal outcome is to achieve a smooth, homogeneous whipped cream with no visible particles while preserving the current firmness, aeration, stability, and mouthfeel of the system. At this stage, I am not looking for a major reformulation, but rather targeted adjustments that eliminate the dots while maintaining the product’s existing performance. Potential approaches could include optimizing the level of roller-dried sodium caseinate, partially replacing it with a spray-dried grade, improving the hydration of specific ingredients, or making other minor formulation adjustments. One possible avenue is determining whether the level of roller-dried sodium caseinate can be reduced from 5% to a lower level (e.g., 2–2.5%) while retaining its contribution to foam firmness and stability. A lower inclusion rate may also improve hydration and solubility, reducing the formation of visible particles while preserving the functionality that makes the current system perform well. The goal is to identify the simplest and most effective solution that removes the visual defects without sacrificing the characteristics that already work well.