“…single liquid phase) are in the chemical engineering curriculum 57, 58, it was pointed out that there is a lack of description of physical data of L‐L systems that influence G‐L‐L operations 23. From the point of equipment design, the physical characteristics of L‐L dispersions or emulsions that play a significant role in designing processes in mechanically stirred tanks 59, in membrane‐based emulsifications 60, 61 or in sieve emulsification mixer 62 are as follows: ratio between the liquid height and the tank diameter, rotational speed of the stirrer, ratio of stirrer diameter to tank diameter, density, interfacial tension, viscosity (either shear or extensional viscosity 63, 64), and feeding/recirculation rates of immiscible liquids. Although these parameters are studied quite intensively for L‐L systems, there is very limited information about the influence of such parameters when G‐L‐L systems in stirred tanks are set up 23, 65; therefore, scale‐up of multiphase bioprocesses is extremely difficult 56.…”