How The Brülosophy Triangle Test Really Works
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- čas přidán 19. 06. 2024
- This episode is sponsored by Delta Brewing Systems, makers of some of the most affordable high quality stainless gear on the market. Check them out at deltabrewingsystems.com!
For Brülosophy exBEERiments, we rely on the triangle test where tasters are presented with three samples of beer, two being identical while one is different. Each taster is then tasked with attempting to identify the odd beer out. We’ve conducted this test hundreds of times, but what’s the rationale behind it? Marshall Schott, founder of Brülosophy, joins us to explain, and we also go over data looking at the influence one's experience has on their ability to accurately select the unique sample on triangle tests.
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I watch A LOT of "amateur" science stuff and I think Brülosophy is by far the best for scientific process... Absolutely superb appreciation for experimental design. Way better than a lot of multi billion dollar companies I've worked with professionally.
I absolutely LOVE this show! All aspects of it! Not a single boring video!
Love the in depth explanation. He's given it before on podcasts, but I'm glad it out here on CZcams now.
Is there any data on what percentage of tasters pick certain colors? Technically speaking, the primary colors are red, blue and yellow. By doing red, blue and green instead blue and green are technically closer to each other than red on the color spectrum. So red would be the most different from a visual perspective and we know that color and visual appearance sways perceived taste to some degree. I doubt you have the data but would be interesting to take a look if you did.
Triangle tests are easy to administer but not super sensitive as there are carry over effects. For example, it is typical that the first sample tested will taste stronger in flavor than the next. 2 AFC or duo trio are more powerful if memory serves me correctly, but take more effort to administer. These are neat experiments overall and I enjoy the content!
Excellent summation! Thanks for presenting this.
Thanks for the Video! Still need to do a exBEERiments myself sometime in the future to see how hard it is for myself to find a odd beer out.
very informative video about data collection overall!
A common statistical test, the t-test, was actually invented by guinness.
I would also be interested in a meta-analyses to see if a specific colour of cup martin uses is more often chosen as the odd one out and if this varies with what is being looked for. I get that it looks better having different colours
What I love with Brulosophy is when they test a widely spread myth of brewing and it turns out it has no noticeable impact at all, even over several experiments performed and people still firmly insists it has made a huge difference for them in their brewing and certainly it must be Brulosophy doing something wrong and is not scientific at all.
P < 0.05 means that there is at least 95% chance that your result is significant.
You had an elegant experiment recently about beer finings: does it improve the taste? You had nearly 20 tests and 1 came back positive and the other negative. That translates to 5 % showed it is significant and 95% are non significant... or in other words p
I think there's research that shows the colour of the cup affects perception of flavour? I realise it makes life harder, but if you don't mix up which colour has the different sample in it, then it might factor in? Although the amount of insignificant tests suggests it doesn't make a difference.
So, in any test some people will pick the correct one just by accident but if 11 out of 20 picked the correct one it's less than 5% likely that these 11 picked the right one by accident? Meaning it's 95% likely they picked the correct one because they genuinely detected a difference.
Love the experiments, but drinking beer from a plastic cup seems wrong. Love the show 👏🏻😎
Love the show and podcast learned a lot but I am surprised you use plastic cups as we know sight and aroma are part of the taste/experience. Maybe colored coasters underneath glass
Color affects perception. So....