Abstract: The salt sampling system may be utilized to collect molten fuel salt samples from a molten salt reactor. The salt sampling system keeps the fuel salt isolated from the environment outside the molten salt reactor system, until the salt sampling system is utilized to collect the salt sample. The salt sampling system may utilize one or more isolation components to position a collection assembly within the reactor system to collect the salt sample, and upon removing the collection assembly from the reactor system, closing the one or more isolation components so that the reactor system is once again isolated. The salt sampling system may additionally utilize a purge gas system and a vacuum system to remove unwanted contaminants from the components in fluid connection within salt sampling system prior to inserting the collection assembly into the molten salt reactor system.