TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method takes place along a conduit, where steps (a), (b) and (c) comprise adding the fatty acid esters, the solvent and the urea to the conduit, respectively. The fatty acid esters are added to the conduit prior to the adding of the urea and solvent to the conduit. Moreover, urea and solvent are added to the conduit together through a common inlet. Step (e) is performed after steps (b)-(c). Step (f) comprises feeding the clathrate-liquid mixture to a filter. Steps (b)-(f) are repeated multiple times. Steps (a)-(f) are performed in sequence. The cloud point of the refined fatty acid esters produced in step (f) is reduced each time steps (b)-(f) are repeated. The method further comprises processing the clathrates obtained from step (f) by separating the urea from saturate enriched fatty acid esters. The separation comprises thermal disassociation. The step of separating the urea from fatty acid esters that are enriched in saturated fatty acid esters comprises: washing the clathrates with heated water to form a first layer of fatty acid esters and a second layer of urea dissolved in the heated water; separating the second layer of the urea dissolved in the heated water; and drying the urea. The second layer is separated from the first layer by decantation. The method as well comprises: mixing the clathrates with a urea separation solvent in which urea does not substantially dissolve to form a first layer of fatty acid esters mixed with the urea separation solvent and a second layer of urea; separating the second layer of the urea from the first layer; and drying the urea. The urea separation solvent is hexane. The separated urea is reused in step (c). The method also comprises reusing in step (b) at least some of the evaporated solvent obtained from step (e). Alternatively, lowering the cloud point of fatty acid esters comprises: providing a mixture including urea, fatty acid esters and a volatile solvent which dissolves urea; drawing a vacuum that removes the volatile solvent from the mixture and thus increasing the effective concentration of urea in the mixture; and separating clathrates comprised substantially of urea and saturate rich esters from the liquid comprised substantially of cold flow esters. The step of drawing a vacuum removes substantially all of the volatile solvent. The step of separating clathrates comprises separating substantially all of the clathrates from the liquid. The method further comprises processing the clathrates into separate components of urea and saturate enriched fatty acid esters. EXAMPLE - No suitable example given.