Anecdoteally sailors used to carve things like buttons from cheese
, as referred to here for one
The British Navy did indeed procure cheese
, which was rather hard (but durable) and presumably became harder with age.
Knowing that cheese can go rather hard if dried out, I decided to test the cheese-button anecdote.
I used a selection-bag of cheeses:Austrian Smoked Processed Cheese
cheese, water, butter, milk protein, emulsifying salt (polyphosphate), potato starch, salt, liquid smokeEdam
milk, salt, starter culture, colour (carotene), preservative (sodium nitrate, calcium chloride), animal rennetBoursin
milk and cream, garlic and herbs (1.6%), salt, pepperMini Babybel Original
milk, salt, milk ferments, vegetarian rennetMini Babybel Cheddar Variety
cheddar cheese (94%), water, preservative (nisin)Red Leicester
milk, cheese culture, salt, rennet, colour (annatto)