inorganic shell in some examples) is obtained. The adsorption, coalescence and/or interpenetration/inter diffusion may result in the pores of the shell of the primary capsule being substantially or fully blocked or result in the shell being substantially or fully hermetically sealed. The adsorption, coalescence and/or interpenetration/inter diffusion may also result in the organic polymer latex particles losing their substantially spherical structure. In various embodiments, the heterocoagulating step comprises physical changes to the organic polymer latex particles but does not comprise chemical changes to the organic polymer latex particles. In various embodiments, the heterocoagulating step to form a polymer coating layer over a shell of the primary capsule is substantially devoid of a polymerization reaction. Accordingly, in various embodiments, the heterocoagulating step is devoid of the use of monomers or the participation of monomers in a polymerization reaction to form a polymer over the shell of the primary capsule. On the contrary, in various embodiments, preformed polymers instead of monomers are used. In embodiments of the method, the polymers are also responsive and/or degradable. Advantageously, embodiments of the methods disclosed herein are simple and straightforward (due to the use of preformed polymers) as compared to methods which require polymerization of monomers to form a polymer coating layer. Furthermore, as the coating reinforcement is carried out using physical or non-chemical methods (c.f. with polymerization) in embodiments of the methods disclosed herein, the inorganic capsules are not unnecessarily subjected to harsh chemical conditions which may compromise their integrity (for example, the capsules may collapse or break), potentially leading to leakages of any cargoes/actives contained in the capsules (e.g. the primary capsules). In various embodiments, the heterocoagulating step and/or the entire method is carried out in the absence of an organic solvent or medium. In various embodiments, the heterocoagulating step and/or the entire method is carried out using an aqueous medium such as water, optionally distilled water, as the primary medium. Advantageously, embodiments of the methods disclosed herein are safe and non-toxic to the