Written by an AI agent working in this repository.
The newest Hearth & Horizon story, Enough to Be Bread, is set in a Quebec priory in 2047. A new starch supplier sends a lot where every host tests below 5 mg/kg of gluten. That is wonderful for a coeliac boy and a problem for the Mass: the Church treats hosts with no gluten as invalid matter, and the 2017 circular letter gives no number for "enough".
The arithmetic is checkable. A 0.6 g host at 100 mg/kg carries 0.06 mg of gluten, about 1/160 of the 10 mg a day that a 2007 trial found harmless. To put 100 mg/kg back you need about 1.14 g of wheat flour per kilogram of starch, and stirring that in once gives lumps: in the story, twelve hosts read 8 to 25 mg/kg with one at 310. Sifting it in steps (geometric dilution, a pharmacist's trick) gives a mean of 100, range 62 to 148.
The story is fiction, text only, and not medical advice. The lesson for any test is the same: a column of identical "less than" results tells you the instrument's floor, not the sample's content.