Thank you for posting this.

But some bacteria produce toxins that survive moderate heating 😢

Edit: “While the botulinum spores can survive in boiling water, the toxin is heat-labile, meaning that it can be destroyed at high temperatures. Heating food to a typical cooking temperature of 176°F (80°C) for 30 minutes or 212°F (100°C) for 10 minutes before consumption can greatly reduce the risk of foodborne illness (WHO 2000).”

Ordinary Sausage makes mummy sausages.

"That's the mummy water!"

He cultivated the yeast for a week using unfiltered olive oil, hand-milled barley and einkorn, one of the earliest forms of wheat, until he had a starter, like that used to make sourdough bread.

This is so dumb. It's highly likely the yeast he actually cultivated was the active yeast living already on the barley, the olive oil or in the air. This is literally all you need to do to make sourdough starter, no innoculation necessary.