Hello Allan, your question was asked 5 years ago and I am surprised to see that it has not been addressed till now. I am just seeing it. It so happens we share similar research interest. Non-toxic antifoam reagents are mostly glycol-based. Antifoam and defoamer for fermentation is a non-toxic, non-silicone defoamer specially designed for fermentation process in distilleries.It is a combination of polyalkylene glycols and fatty acid esters.It is water dispersible and can be applied in natural state by aspersion or by automatic dosing pump. It shows excellent knock-down performance in the control of foam, improves the flow and reduces viscosity of the medium even at very low dosage without leaving residue. The shelf-life is long and therefore recommended.