Here is a *fascinating* look at the Pfizer production lines. Amazing! It looks a lot like a top-quality experiment. Which it is. See:
https://www.nytimes.com/interactive/2021/health/pfizer-coronavirus-vaccine.html This has both text and short, high resolution video portions. It shows close-ups of the equipment. It briefly explains many of the steps in the processing. For example, it shows how the RNA is encased in lipids. For much more detail about that step, see: https://www.mdpi.com/2076-393X/9/1/65/htm This will sound familiar to an experimentalist: "A rack of 16 pumps precisely controls the flow of the mRNA and lipid solutions, then mixes them together to create lipid nanoparticles. . . . Synchronizing eight pairs of pumps is not an ideal solution, but Pfizer engineers chose to scale up existing technology instead of trying to build a larger, unproven type of precision mixing device. . . ." New York Times articles about the pandemic are not behind their paywall, so anyone can see this, I think.
