Watched a Brulosophy vid last night which was testing the shape and material a fermeter was made of verses the taste of the beer . They said that the got a significant number ofpeople who said that beer made in a glass carboy was distingiushable between beer made in a PET fermenter. The presenter said he though this is due to the fact that PET is oxygen permiable albeit at minute amounts. I have my doubts about these experiments in as much as the number of people in the test and whether they just make a guess? What do you think? Thirty people in a test is very small to get a result I think. In one test of 30 testers 16 correctly picked the odd one out and they said that was a significant test of proof.
BS or fact?
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It works on womens make up and facial products, see the ads on tv they say 60 out of 83 said it was good that's just a random number but have a look
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The facts alone are right.
Fermenter shade makes a difference (but not in a few gallon imo)
PET and more so HDPE are oxygen permeable.
The rest is Brulosophy
Fermenter shade makes a difference (but not in a few gallon imo)
PET and more so HDPE are oxygen permeable.
The rest is Brulosophy
I worked in Pharma research in a study there would be thousands of participants, different thing right enough but to get a true idea of the effect of something you need more than what they are claiming if a positive result. The other thing is some of it is just a random guess because they don't really know. In one test the expert taster who knew what he was looking for could not tell which sample was the odd one out but of the testers the same was not true and that was proof positive?
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In defence of brulosophy, they have NEVER said this is proof of anything. They are very careful to say so and go to great lengths to state this is a single data point and never proof (or disproof) of anything.
All they state is that for that beer, with that number of testers they got a statistically significant result. That's it.
So it's neither "BS" nor is it "fact", and it was never intended or stated to be either.
All they state is that for that beer, with that number of testers they got a statistically significant result. That's it.
So it's neither "BS" nor is it "fact", and it was never intended or stated to be either.
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You can't "prove" anything with statistics. The best you can do is to get a good enough collection of data to have "a high degree of confidence/likelihood" in something. Brulosophy provide one single data point which falls fall short of having confidence in anything, and they very openly say this.
With statistics, you can and do get anomalies and produce a false result (many people could select the correct odd one out by chance) - that's why you need to gather more than one data point.
With statistics, you can and do get anomalies and produce a false result (many people could select the correct odd one out by chance) - that's why you need to gather more than one data point.
An Ankoù
Landlord.
Yep!
Nine out of ten cats prefer Whiskas as it's enriched with marrowbone jelly. So it must be true.
Nine out of ten cats prefer Whiskas as it's enriched with marrowbone jelly. So it must be true.
Shame they did 'shape and material' rather than shape or material as it could have been the shape, the material or the combination that made the difference. 
An Ankoù
Landlord.
I'm surprised they chose glass instead of stainless steel. I can't think of any commercial brewery that ferments on glass.
Not sure about the oxidation hypothesis, either, since some (few) brewers still use open fermentation.
Did the results include a count of which beer the participants preferred?
Not sure about the oxidation hypothesis, either, since some (few) brewers still use open fermentation.
Did the results include a count of which beer the participants preferred?
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Agree. But they probably don't exist.Shame they did 'shape and material' rather than shape or material as it could have been the shape, the material or the combination that made the difference.
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Glass fermenter, plastic fermenter and "plastic fermenter in a 100% nitrogen atmosphere"
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An Ankoù
Landlord.
I had in mind, open as in no lid, like a swimming pool, but with less froth.
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Righto. Yikes
Frothy swimming pools the mind boggles
Frothy swimming pools the mind boggles
Mixing advert PAL was enriched with marrow bone jelly. I also think it was 8/10 but they don’t say prefer it to what, probably a dead animal.
