They may be recyclable, but compostable - they ain't. I have never timed how long the process actually takes but if/when these pop out the bottom I'll have an idea. The rate at which stuff was added, even with two of us, was relatively slow. These two went back in for a second pass to see how they come out after Round two.
Another item somewhat unkeen on being composted - Avocado skins come out intact, but "crumplable"