 In this module, we will talk about some accessories that is needed with the fermenter for the smooth running of the fermentation process. Why the accessories is needed? When we say that fermentation is the process of mass-culturing of the organism. So, when any organism has to grow that require a suitable temperature, that required a suitable pH, that required number of environmental conditions. So, to run the fermentation process in ideal manner, we need some basic accessories. What kind of those accessories you can see here? There is a list of accessories. First of all, we say the baffles. Baffles are basically the inward growth inside the fermenter vessel. We will talk in detail about the baffles and how we have to design those baffles in our later modules. And then we need a sterile compressed air. So, if the process is aerobic, then we have to provide the air either mixed air, either a pure oxygen that what kind of the gas is needed by that organism. So, we have to provide the sterile air. So, all those equipment which need to sterile the air, that can be a filter, that can be any other equipment. So, that is needed. So, the chilled water is needed. So, for the chilled water, we have to need some chilling equipment because we know that fermentation process, general organization, when we talk about the general organization of the fermentation process, sterilization is a vital. So, when there is a sterilization either by in-situ or ex-situ sterilization, we have to raise the temperature up to 121 degree Celsius. Normally, we achieve that with the steam or with the wet sterilization. So, when we increase that temperature, then we have to cool down that. So, that is why the chilled water is needed from 12 to 15 degree Celsius. Sometimes we have to need the chilled water just for as a to supply with the condenser, because when there is a continuous aeration in the fermented vessel, then there is a loss, evaporation loss. So, to control the evaporation loss, we have need the cold water. Then we have need hot water and the steam just for the sterilization purpose. So, these are different the accessories that we need during the fermentation process. Steam condensate electricity because we have to stir, we have to agitate the fermentor medium and we need some different agitators and then electricity is required steam. So, sometimes there is a shutdown of the electricity. We need a stand by generator because fermentation is a continuous process. So, if we have to run our fermentation for seven days, we have no chance of any electrical shutdown. So, we have a stand by generator especially that is very critical in such countries like Pakistan, when there is energy shortage and there is a gradual fluctuation in electricity supply. So, we have the drainage proper drainage of the effluent produced through the fermentation process and then we need a different motors. We need different storage facilities because the media we have to use, we have to store, we have in a stock for the continuous supply and with a consistent quality and then along with that these are the physical requirement which we have needed for fermentation process. So, if we want to run the fermentation process on an industrial level, we have to fulfill all these requirement for a better and for a consistent quality product through fermentation process.