Though I think (anyone feel free to jump in if I’ve got it wrong) that the coffee limits are not 10% non-coffee matter by weight but rather 10% of beans demonstrating insect damage/infestation/mold. This is not exactly reassuring, but it’s almost certainly far less insects than 10% of your coffee bag’s weight being ground up buggies. You can read about the FDA’s coffee analysis process which is interesting, if somewhat opaque.
You’re not going to be encouraged by everything else they allow.
Though I think (anyone feel free to jump in if I’ve got it wrong) that the coffee limits are not 10% non-coffee matter by weight but rather 10% of beans demonstrating insect damage/infestation/mold. This is not exactly reassuring, but it’s almost certainly far less insects than 10% of your coffee bag’s weight being ground up buggies. You can read about the FDA’s coffee analysis process which is interesting, if somewhat opaque.