"What items do you offer that can be used for Biodiesel processing, transfer, and storage": https://www.usplastic.com/knowledgebase/article.aspx?contentkey=829#:~:text=They%20suggest%20their%20non%2Dspill,in%20its%20processing%20of%20it.&text=The%20polyethylene%20cone%20bottom%20tanks,to%20hold%20up%20to%20fuels
"Handling and Storage of Biodiesel":
https://www.biodieseleducation.org/Literature/TechNotes/TN31%20Storage%20and%20Handling.pdf
The biodiesel procedure from Loyola University Chicago's biodiesel lab: