I’m looking for a way to sterilize thistle seed so that it won’t grow. Here’s the trick, though; I need to do it without using a microwave or oven.
Basically, I want to sterilize thistle seeds, but I want to do it in a way that the “fluff” that surrounds the seed isn’t destroyed.
Are there any other methods that guarantee sterilization of the seed? Either via at-home method or industrial process?