I have a problem with adding sunflower lecithin to WPC 80 powder. I add hot lecithin (60C) to WPC powder but big lumps were created. As a result the final instant powder don't have solubility properties. What can I repair in this process?
I would agree with Samira Feyzi: too much water in one of the components will decrease the Tg of your system (espessially, it is important, when you are increasing temp. ), thus, the system came to the stickiness at some point (may be even collapse). One of the option will be,porbably, a rapid cooling of the mixture (or while mixing) to room temperature.