I know it an aussie who routinely crapped at work just to save a little money on toilet paper.
And they scrape the sludge out of beer vats, process it, can it, and convinced people it is a wonderful spread for their morning toast and tea.
Oh, no, I thought they carefully, “reprocess”, the yeast extract...actually...if you check out the ingredients in many processed foods you will find yeast extract as an ingredient..it has that “umami” characteristic thingee.
Same frugal food usage as sausage...hot dogs..head cheese...tripe, chitlins, pig ears, ham hocks, fried brain, insects,birds nest soup, balut, fermented(almost rotten) dairy products...fermented grape juice, fish sauce, haggis, etc...