The devil is in the details from what I’ve heard. Here are some current details.
I’ve thawed out the remaining poke berries from last fall given to me by Nate Smyth. What a mess I’ve made!
I also invented something to make my job easier. The crushed pokeberries make a thick liquid which is more syrupy than watery. A good potion of this syrup clings to the seeds.
In order to avoid rinsing the seeds with water to reclaim as much pigment as possible I developed a press to push out the liquid. I used three plastic containers, two are pint size and one is quart size (which becomes the default collection container). The middle container gets holes drilled into the bottom. This middle container holds the seeds and syrup slurry which I push down upon with an empty container with a lid closure.
All the containers share the same diameter (and lids), so they fit into each other (creating a stack). Since the largest container has more depth than the smaller containers, it never comes into contact with the liquid being separated from the seeds.
A note of warning. The previously frozen berries create an environment for fast decomposition. Gasses will build up in the bottles in which the liquid is collected. Leave lots of space in the bottle to prevent a magenta explosion!
Finally, I bought some fabric to make the lab coat and have done a small test coating of the material. This swatch will become the upper pocket on the front of the lab coat.