Leila Loomis and Robert Henrickson both have discouraged me from trying to grow spirulina because they say that it requires a great deal of technical expertise but they also say that since we are dealing with a micro organism then contamination can be a big problem. This is a wonderful food and should be able to be grown by normal people, but when we give step-by-step instructions to people they should be aware they might end up eating contaminated algae. I don't think any of this is going to stop me from trying to grow my own algae, but there are some issues with regard to quality control and scientific testing that should not be swept under the rug. Leila says that the testing is very expensive.
Offered by Glenn.