If you say so. Nice copy pasta, btw.

I wrote that myself. It was a first draft. It's standard teaching. I was doing bacteriology research in the mid 1970s. Autoclave technology was already old then.

My point was that steam is more efficient than air at sterilizing things. You had to “correct” me by pointing out that steam is more efficient than air at sterilizing things.:lol:

Though a bigger pressure cooker might be preferred, smaller pressure cookers are often available for less than $50. In fact, Amazon in the US lists over a dozen models for under $40. One may consider multiple runs to sterilize what needs to be done.

Yeah, might be. Here in germnay they are mostly a lil more pricey.

Also "just" buying a cheaper smaller one is as you said not that smart. I dont wanna wait 40 mins for every single flask xD

Fortunately, i could lend one from my grandma~

It will vary with the specific flasks used, of course, but a typical household pressure cooker can hold about 5-6 flasks per layer and a couple of layers can be done, using a metal separator.

They need to be treated 15-20 minutes.

Well i use standard jam jars. Theres no space for more.

And yeah you are right up to 20 mins. But without cooldown and heating up to the pressure.