> For the complete documentation index, see [llms.txt](https://docs.brewersfriend.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.brewersfriend.com/groups-1/tanks.md). # Tanks Setting up your custom cellar; Click on 'Add a Tank', enter the desired name of the tank (e.g. FV01), size, type and any other info. Type can be chosen from 'Barrel', 'Bright Tank', 'Fermentation Vessel', 'Serving Vessel' and 'Yeast Propagation Tank'. Status' include; 'Green', 'Bright', 'Dirty', 'Cleaned' and 'Cleaned and Sanitized'. When a Brew Session is assigned to a Tank, the tank status automatically reads 'Green'. After a transfer is conducted, the status of the tank the beer was transferred from automatically reads 'Dirty'. ![](/files/-M5DLLpQrHYE2RmcJqj_) Set up your custom cellar to; Attach your brew session to a tank (FV, BT, SV, YPT and barrels) to allow you to add custom logs to tanks. Conduct transfers and keep a tank log history. Add custom alerts and notifications to future tank logs. Double batch, split batch and blend. * When multiple brew sessions are added to one tank (double batch), enter a fermentation complete log in the tank logs to apply the final gravity to all brew sessions in the tank. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.brewersfriend.com/groups-1/tanks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.