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It should be oil in water… but the ratios of the two samples are the same. I am really wishing I had kept a sample of the thinning batch in glass.
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This is interesting. Thank you for the insight about homogenization temps. Both samples were produced with similar, albeit not identical processes. Reason being is that when I overheated the oil phase for the sample that is now less viscous, I let it sit a while until it was around 105C and blended into the water phase at 60 to balance the temp out. My normal method is to combine when both are within 10C, add steadily while homogenizing and pulse periodically as it cools to 40C in a water bath. I am thinking this is likely the key difference. I have found this formula to be fairly forgiving as far as how quickly I add the oil phase, how long I homogenize, etc. Both homogenization processes began immediately when blended at 70-80*C, but I can see adding the 105C oil phase to the 60C water phase being a shock to the structure building agents. Perhaps even the xanthan gum, which was dispersed throughout the water phase, could have been damaged. It is certainly interesting, as the formula has been stable any other time I have tested it and this iteration is as near identical as practically possible. The only thing different in the process was the temperatures.
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Right, thanks for the clarification there, I just mean the “portion” of the oil phase without being too specific.. the portion of the oil phase comprised of emulsifiers and other surfactants/structure modifiers. As to the polarity of oils, I am not too concerned, as this is the only batch I have had shift from normal. One other thing I will add, the sample in question was stored in stainless steel, and the small portions I pulled to dose with fragrance for testing seem to be reacting with the “galvanized” tins they are in… Do you know if that might be an issue? Perhaps the steel is contributing an ionic charge to the emulsion? PH is at 5.5 +/- .5
The sample stored in glass is holding up great, but at this point its only correlation.
