capsule is absent or minimal. The method may also have high scalability in the sense that the mixture can be scaled up to kilograms or even tons to produce a higher amount of the hybrid/composite capsules. Additionally, the method may have high reproducibility in the sense that the method may be performed reproducibly for no less than 5 times. In various embodiments, the forming of the polymer layer/film over the primary capsule consist essentially of or consist of the heterocoagulation step. For example, the method does not comprise a plurality of (or multiple) deposition steps to repeatedly deposit polymer layers on the primary capsule to achieve a desired thickness of polymer layer over the primary capsule. In various embodiments, the method does not require additional deposition step(s) after the heterocoagulating step. There is also provided a hybrid/composite capsule produced by the method disclosed herein. The hybrid/composite may therefore have one or more properties previously described. In various embodiments, the hybrid/composite capsule comprises a primary capsule having a shell; and a polymer coating layer over the shell of the primary capsule. The hybrid/composite capsule produced by the method disclosed herein may comprise a hollow core or one or more actives/substances encapsulated by a hybrid/composite shell. In various embodiments, the thickness of the hybrid/composite shell is from about 20 nm to about 1100 nm, from about 25 nm to about 1050 nm, from about 30 nm to about 1000 nm, from about 35 nm to about 950 nm, from about 40 nm to about 900 nm, or no less than about 20 nm, no less than about 25 nm, no less than about 30 nm, no less than about 35 nm or no less than about 40 nm. In various embodiments, the hybrid/composite shell is substantially non- porous or hermetically sealed. The shell of the primary capsule may be