Boiled coffee in a pot contains high levels of the worst of cholesterol-elevating substances. Coffee from most coffee machines in workplaces also contains high levels of cholesterol-elevating substances. However, regular paper filter coffee makers filter out most of these substances, finds study.

[u/mvea]

https://www.uu.se/en/press/press-releases/2025/2025-03-21-cholesterol-elevating-substances-in-coffee-from-machines-at-work

[u/Parafault]

Isnt that the whole point of a French press? The steel filters in those are probably too big to remove any of this stuff.

[u/rustyphish → u/Parafault]

But they’re saying “most workplace machines”, I’d think that wouldn’t account for things like a French press

[u/zxern → u/rustyphish]

Probably talking about the giant percolator pots that make 40 cups at a time and store it in the pot.

[u/KingAdamXVII → u/zxern]

Those ones have filters, I thought?

Ah, from the article: “Considering how much coffee is consumed in Swedish workplaces, we wanted to get a picture of the content of cholesterol-elevating substances in coffee from these types of machines.”

[u/greiton → u/KingAdamXVII]

not the big drum ones, they just have a metal sieve between the boil chamber and the reservoir.

[u/KingAdamXVII → u/rustyphish]

Ah, from the article: “Considering how much coffee is consumed in Swedish workplaces, we wanted to get a picture of the content of cholesterol-elevating substances in coffee from these types of machines.”

And elsewhere in this thread someone mentions this is how coffee is often made in Sweden.

[u/impossiblefork → u/KingAdamXVII]

Usually Swedes make coffee with a coffee machine with a filter.

The pot method is as far as I understand completely historical. No one uses it other than on like a hike or something.

[u/hfsh → u/impossiblefork]

No one uses it other than on like a hike or something.

Or, elderly Swedish farmers if my brother-in-law's dad is someone to go by.

[u/BadAtExisting → u/rustyphish]

I took that as Kureg and I’m not entirely surprised. The more industrial Bunn ones wouldn’t be surprising either though

[u/VoilaVoilaWashington → u/BadAtExisting]

I own restaurants. The giant Bunn machines are just big pourover machines, but surprisingly, better.

So they still use filters and all that, but they also actually have better temp controls than your home machine, most likely. Some might be crap, but many aren't.

[u/BadAtExisting → u/VoilaVoilaWashington]

I guess I meant whatever this is that’s in most office break rooms https://www.homedepot.com/p/Bunn-VP17-1-12-Cup-Commercial-Coffee-Maker-1-Warmer-13300-0001-13300-0001/203079780

[u/curtcolt95 → u/BadAtExisting]

those use filters though right?

[u/BadAtExisting → u/curtcolt95]

Honestly. I don’t know. I said “not surprised”. I don’t work in an office. I brew my own at home with a Mr Coffee. Do those use paper filters? How often are they changed if so? So you tell me

[u/curtcolt95 → u/BadAtExisting]

they use paper filters and you put a new one in for every pot, can see in the recommended section below on that page that you can buy 1000 filters for $16

[u/VoilaVoilaWashington → u/BadAtExisting]

Yeah, that's the one. Although normally, in a decent-sized office, you'd buy your coffee from a supplier who would give you a free machine and service it and all that.

[u/walkeritout → u/BadAtExisting]

Those Bunn makers use filters though.

[u/cannycandelabra → u/BadAtExisting]

The keurig doesn’t boil the coffee, though and that’s an important part of this

[u/SharkFart86 → u/BadAtExisting]

Keurig pods have a paper filter in them though.

[u/BlueRibbons → u/Parafault]

I feel like boiling the grounds might draw out more oil due to extensive heat and agitation?

[u/domesticbland → u/BlueRibbons]

The beans are oily after being roasted.

[u/EuphoricLettuce → u/Parafault]

French press is fine it is strictly related to boiled coffee (ie cowboy coffee) although espresso does have elevated levels of diterpenes but had a high variance to the samples.

You can view a chart from the study in the article:

https://ars.els-cdn.com/content/image/1-s2.0-S0939475325000870-ga1_lrg.jpg