This document provides an introduction to the basic natural rubber processing. It discusses the structure of natural rubber latex, including its constitution. The latex is composed of rubber particles, lipids, proteins, and serum. The rubber particles are spherical structures made of polyisoprene, which is synthesized from the isoprene monomer. The ideal conditions for cultivating rubber trees include warm temperatures, high rainfall, acidic soil, and well-drained land. Biosynthesis of natural rubber occurs through enzymatic polymerization of isoprene monomers into long polyisoprene chains via many intermediate steps.