No, modern chemistries tend to use a cloud point surfactant which is a nonionic nonreactive surfactant. However, at temperature, typically 140°F maybe 120°F, they turn cloudy and it does that to help reduce the foam. The cloudiness of the bath is by no means an indication of whether you’re going to have foam or do have foam. There are times that it can be a symptom of foam, but typically no.