Kraig Biocraft Laboratories Inc (KBLB)

[GTman1]

Time and again I have offered up evidence that the bioprocess of protein production is cost prohibitive. Unless there is some monumental breakthrough in this process, Bolt Threads and any other fermented protein producer will NEVER make cost effective fibers.

It costs about $60 per gram to make human insulin (the same process Bolt Threads uses to make their silk proteins). Note that this is the production cost, not even the selling price. This, coincidentally, is roughly the same price of gold at this moment. Bolt Threads, Spiber, Amsilk, and any other protein fermentation company would be better off trying to sell T-shirts made out of pure gold fiber than using the protein fermentation process.

The costs of these proteins in the pharmaceutical industry are cost effective because a gram of protein can go along way in therapeutics. It is absolutely NOT cost effective in textiles.

I provided this link before but this is literally a textbook on the bioprocess that Bolt Threads and others use to produce their proteins. Give it a good read if you want to learn the "truth" 4 once.

https://www.researchgate.net/publication/306253307_BioProcess_Design_and_Economics_2nd_Edition