It is possible to completely dissolve coffee grounds while cleaning a metal filter? After months of use, the metal filter used in my French press coffeemaker now has small traces of coffee grounds stuck between the mesh fibers which cannot be removed by brushing either side. Seeing the advice in How do I effectively clean a metal Chemex filter?, soaked the filter in 5% vinegar for multiple nights, but unfortunately the grounds remained embedded in the mesh.
Before trying alternative methods in the linked post, I wanted to check with folks here to see if any were particularly effective, especially before applying any of them method to clean a metal, cylindrical cold brew filter, which would be more difficult to replace if damaged than the metal mesh of a French press:

Soak filter in vinegar (acetic acid) solution

The recommendation seems to use a solution of 1 part vinegar, 1 part water. Any drawbacks to using pure vinegar (which itself has low acidity, 5% in my case)?


Soak filter in lemon juice (citric acid) solution
Soak in bleach

Any concerns about damaging filter?


Soak filter in baking soda

Any advantage to combining baking soda with vinegar for the soaking solution?


Boil filter in water

For cleaning a cold brew metal filter which is not designed to withstand temperatures that high, any concerns about the metal deforming or joints coming loose?


Boil filter in vinegar

Would that not be damaging to the metal filter, per https://www.networx.com/article/the-science-of-vinegar?

Never boil vinegar or even heat it up. At high temperatures, concentrated acetic acid will become corrosive and can burn through metal and rock.




Boil filter in water with teaspoon of Urnex coffee equipment cleaning powder
Massage soap through filter
Use an ultrasonic cleaner
Use a high-pressure water stream, such as from a Waterpik, to force the coffee grounds out of filter holes
I'm not a chemist, but I'm confident that you won't be able to dissolve coffee dust using conventional cleaning methods. I think the chemical solutions you describe are primarily aimed at dissolving oily residue.
If fine grounds are stuck in the filter, I'd try to remove them mechanically. In this case, I think air pressure from a compressor could push them out.