A wetting agent is a substance that reduces the surface tension of water, it spreads water on the surface and increases the ability of liquid dispersion. Reducing the surface tension will reduce the energy required to distribute the droplets onto the film, thereby weakening the cohesion of the liquid and enhancing its adhesion. An example of how wetting agents work is the formation of micelles. The micelle consists of a hydrophilic head, which forms an outer layer around the lipophilic tail. When it is in water, the tail of the micelle can surround the oil drop and draw its head into the water. Dishwashing soap is a good example of a wetting agent. For all food oils and the cohesion on the board, it is difficult for water to disperse and clean the board. Soap dissolves all these unwanted particles, showing us a clean surface. Soap can also reduce the surface tension of water and make it evenly distributed on the whole surface. There are four types of wetting agents:...