I don’t always use a blender. But when I do, my choice depends on how much cleaning difficulty I am up for.
My immersion blender is good enough to mix Soylent thoroughly, for sure. It also:
- does a good job mostly liquifying frozen blueberries, bananas, and frozen kale powder.
- And then it’s very easy to clean.
You do have to be careful in use, though, to keep moving it around and not get it too close to the surface.
I don’t have a nutribullet, but a similar mid-level blender. I use it occasionally for smoothies and Soylent (including DIY). It will:
- liquify solids better, including frozen broccoli, hard fruits, etc.
- but it won’t mix pure Soylent any better than the immersion blender, and actually introduces more air
- It is easier in that you can walk away for a few minuntes while it works.
But then cleanup is much longer, and sticky liquid has usually run down some crevice or place I don’t initially notice.
If you’re commited to purchasing something, I vote for Nutribullet - purchased at Costco, or perhaps a more reputable blender brand if you don’t have Costco access. You’ll likely find more uses for it outside the Soylent mission. An immersion blender is more specialized.