If it is certified organic then it should be non-irradiated by definition as certified organic cannot be irradiated by law. Some suppliers can be sneaky though. Check the brand's website to see what their policy says, or if it is a private label (store brand) then ask the store, they should know. I order mine from Banyan Botanical because their policy page says it is non-irradiated and they independent test for heavy metals and pesticides which can be an issue with products that come from India or China.