I was reading up on how to remove TiN ... it requires very concentrated inorganic acids at elevated temps as cited above, all of which are very hazardous. The organic acids in coffee aren't going to do anything. A curious Russian patent application used a combination inorganic salt solution but again, these wouldn't be present in a roasted bean.
Basically I see no point in the TiN coating since it seems to flake off under minimal duress, and there is no TiN to TiN contact so lubricity isn't an issue.
I just feel bad for my friend to have to fork out another $400 (GBP equiv + VAT) for what is meant to be a "lifetime purchase". Plus for anyone else who might be experiencing the same.
One thing's for certain, given that WW insists on supplying and defending TiN coated burrs, they'll never have me as a customer. Not that I'd ever need it, I have 2 BNZ Conicals, a BNZ Flat, and a Sette 270.
My Dr friend corrected me on my earlier assertion that Ti metal is safe in the body. Apparently after decades of using Ti in hip replacements it now appears that Ti to Ti contact increases metal serum levels and ongoing research is being conducted into the toxicity implications. He said Ti is no longer used in these circumstances.
"Don't worry sir, it's proven to be entirely safe!!" ... until it's not.
Basically I see no point in the TiN coating since it seems to flake off under minimal duress, and there is no TiN to TiN contact so lubricity isn't an issue.
I just feel bad for my friend to have to fork out another $400 (GBP equiv + VAT) for what is meant to be a "lifetime purchase". Plus for anyone else who might be experiencing the same.
One thing's for certain, given that WW insists on supplying and defending TiN coated burrs, they'll never have me as a customer. Not that I'd ever need it, I have 2 BNZ Conicals, a BNZ Flat, and a Sette 270.
My Dr friend corrected me on my earlier assertion that Ti metal is safe in the body. Apparently after decades of using Ti in hip replacements it now appears that Ti to Ti contact increases metal serum levels and ongoing research is being conducted into the toxicity implications. He said Ti is no longer used in these circumstances.
"Don't worry sir, it's proven to be entirely safe!!" ... until it's not.

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