Images of my plates with peper grain and my emulsion making setup:
I saw a few posts from a long time ago, especially ones mentioned by PE, stating that "pepper grain" can be caused by improper mixing or by too little or poor-quality gelatin. I was using only 500 RPM with a magnetic stirrer, while many recipes mention even 300 RPM…
Also, my peristaltic pump was dropping silver nitrate drop by drop, and the first few drops formed boba-like clumps that quickly dissolved—as far as I could tell (solution got cloudy).
In my case, I suspect the issue was improper mixing rather than the gelatin.
How much stirring should I be using?
And is it okay to add silver nitrate drop by drop, or should I lower the tubing into the solution or use a different method?
I saw a few posts from a long time ago, especially ones mentioned by PE, stating that "pepper grain" can be caused by improper mixing or by too little or poor-quality gelatin. I was using only 500 RPM with a magnetic stirrer, while many recipes mention even 300 RPM…
Also, my peristaltic pump was dropping silver nitrate drop by drop, and the first few drops formed boba-like clumps that quickly dissolved—as far as I could tell (solution got cloudy).
In my case, I suspect the issue was improper mixing rather than the gelatin.
How much stirring should I be using?
And is it okay to add silver nitrate drop by drop, or should I lower the tubing into the solution or use a different method?