Ricin Resources

Ricin Resources
Oct 8 CDPH Team

What is Ricin?

Ricin is a poison found naturally in the beans of the castor plant (Ricinus communis). If castor beans are chewed and swallowed, the released ricin can cause injury. Ricin can be made from the waste material left over from processing castor beans.
It can be in the form of a powder, a mist, or a pellet; or it can be dissolved in water or weak acid. Although, it is a stable substance under normal conditions, but can be inactivated by heat above 80 degrees centigrade (176 degrees Fahrenheit).


Click to download.

 Medical Provider Alert: Ricin (California Department of Health Services) [DOC]
 Guidance for Response to Ricin Delivered by Mail (DHS) [PDF]
 Ricin Fact Sheet (CDC) [PDF]