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I put it in AI and even that couldn't fix the sentence sufficiently for me to understand it completely.

"So, in ordinary language:"

"One dirty raw ingredient introduced far more spores than expected, and the way it was mixed into the water made the sterilization cycle less effective against them. The autoclave itself was probably not broken."

"The exact relationship to water temperature remains somewhat ambiguous because the HN commenter did not provide the detailed investigation findings."

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To be fair I omitted some key information. The 'dirty raw ingredient' mixed in room-temperature purified water wasn't sterilisable. The same process but mixed in 60°C purified water was sterilisable.
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It actually took me a minute to decide whether or not to upvote the AI-content post. But it was informative, you were forthcoming on the origin, and the GP has yet to elaborate. Thank you for posting that.
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