Embodiments of the disclosed methods also have high encapsulation efficiency since 20-30 wt% of actives in water can be emulsified and encapsulated in a primary capsule such as silica capsule with almost quantitative efficiency. Upon polymer coating, leakage of the encapsulated actives is substantially prevented and hence the efficiency is retained high. Even more advantageously, embodiments of the disclosed methods have high reproducibility (the inventors have performed embodiments of the method reproducibly for more than 5 times in lab scale (1 L total volume)). It will be appreciated by a person skilled in the art that other variations and/or modifications may be made to the embodiments disclosed herein without departing from the spirit or scope of the disclosure as broadly described. For example, in the description herein, features of different example embodiments may be mixed, combined, interchanged, incorporated, adopted, modified, included etc. or the like across different example embodiments. The present embodiments are, therefore, to be considered in all respects to be illustrative and not restrictive.