I just wanted to see how many people are doing either as I have seen freeze thaw being promoted on the forums a lot while my experience has taught me the exact opposite.
Freezing then blending the bark makes the whole thing melt and then you are left with wet bark in the blender that doesn't decompose, just sticks to the blades... even freezing in water and blending too.
Now, I only ever blend when the bark is dry as it pulverizes to a crisp when it is nice and crispy.
I just stick it in a garden mulcher... then leave some in the sun while some in the oven
somewhere between 100-200Then it goes in to a 1000w blender (four blade arms). If you want to save time buy two. Then you tilt the blender halfway onto it's side (90 degrees tilt) and shake it and then let it do the work. The tilt makes it not stick to the bottom and rush all over the jug providing more contact with blades. I put in two big handfulls and it usually it takes 2 minutes but bigger whole bits (5x15cm) may take double that time and that gets it in to a powder/shredded form like this:
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I also lift the blender lid of infront of a fan and window so that I don't breath in all the particles otherwise I would be picking purple boogers for a week!