The teachers at BGI Qingdao Research Institute have not been able to find a good method for detecting moisture in spherical freeze-dried products. Spherical freeze-dried products are lightweight and have low moisture content in a single bottle. Testing them with an oven or a rapid moisture analyzer requires a large amount of samples and has low testing accuracy. They directly use the Karl Fischer method for testing because the samples are difficult to dissolve in solvents and are not easy to detect. Finally, they learned about our testing case through the internet and contacted our sales team to send samples for testing. The customer expressed satisfaction and ultimately decided to purchase our V310S-KHF Karl Fischer heating furnace moisture analyzer. After signing the contract, our company immediately arranged for engineers to install and debug it on-site, and made samples for the customer. The customer is also very satisfied with the results of on-site inspection of spherical freeze-dried products.