LAY SUMMARY

Preventing Oil Separation in Keto Sauces

This page provides a lay summary of peer-reviewed research for interested readers. This summary reflects the findings of the cited research and is not intended as dietary guidance.

The problem: In ‘Oil-in-Water’ emulsions (salad dressings, keto sauces), the oil droplets inherently prefer to clump together (coalescence) and float to the top, resulting in a watery mess at the bottom.

The Findings:

Results The “Magic” Number: Most statistical stability was observed for 0.8% w/w Xanthan Gum. While 1.0% was thicker, the 0.8 percent mark allowed for the smallest increase in droplet size over time, ensuring the sauce stays smooth for weeks. Heat

Resistance: The study also showed that Xanthan has something called a “network” even under mild heat (40° – 60° C), which makes it perfect for warm sauces that typically break when it’s served. 

Oxidative Shield: Surprisingly, the Xanthan coating on the oil droplets was what kept the oil from getting rancid (oxidizing) and thus prolonged the shelf life of the product's "fresh taste".

Edmund’s Take (Founder Insight):

“To our clients, Xanthan is often applied too heavily, and the texture of Xanthan becomes ‘snotty’. This 2026 report is evidence of my message as a professional for many years: less is more. Striking that 0.8% sweet spot provides you confidence of a commercial dressing without compromising the clean mouthfeel that home cooks crave. It’s about precision, not quantity.”

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