What is Yeast and How is it Found? | Food Unwrapped

Jimmy heads into the woods to find out what exactly IS yeast and if it is grown, scavenged, made... or all three?
Food Unwrapped Season 5 Episode 15
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Our team of intrepid presenters (Jimmy Doherty, Kate Quilton, Matt Tebbutt, Helen Lawal, Andi Oliver, Amanda Byram and Briony May Williams) travel the world uncovering unusual, intriguing and surprising secrets behind the food we eat.
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[@Tuxedoz]

Where it came from was the yeast of my worries, but this raised my interest.

[@ashley16321]

That joke was so yeasterday

[@Tuxedoz]

@@ashley16321 Good jokes take time to brew up. Don't hate the baker, hate the grain.

[@Kenmanhl]

All these puns... I certainly don't knead it

[@ashley16321]

@@Kenmanhl that's maybe cause you haven't been left to rise for 2 hours

[@theresa5059]

DADS! 🤦‍♀️

[@ScottishOutlaw]

Genuinely fascinating. Never thought about where yeast comes from. Let alone specific strains.

[@christopher19894]

Imagine being the first person who ate leavened bread... Almost as good as being the first person who ate cooked meat, I would imagine.

[@vClooouDz]

The first person who ate salty food

[@tfries1607]

Legend has it that the Earl of Sandwich was the first man to add cooked meat to his leavened bread.

[@cowboybob5]

Since I'm using this video in a post, I gave it a "like". It was the yeast I could do.

[@davemars80]

Lol brilliant

[@billyandrew]

You 'raised' the comedy bar. I'll drink to that. 🍻

[@notch156]

Just in time to show my students at school. Love this channel. Thank you for 5 minutes respite each lesson

[@mnkybndit]

There's a brewers yeast called "Wild Brew Philly Sour", it's made by Lallemand. It produces alcohol and lactic acid for sour beers, it was found in a graveyard in Philadelphia.

[@SY-ok2dq]

Raised from the dead!

[@giovanniganss8284]

"and after 48 hours you get 1 kilo, and after another 48 hours it will give you 13 tons!..... AND after another 48 hours it will take over the world lol. Insane growth rate.

[@Themis33]

I'm SO confused. How did we not know this. How did our ancestors discover it. It makes no sense. 😩🤔😂

[@billyandrew]

They set unleavend dough out, I suspect, leaving it longer than usual. Flour has starch and sugars, which the bacteria obviously settled on, to feed, increasing the dough's size. I guess 'whoever' decided to bake it and see what happened and was more than pleasantly surprised at the result. Repeated experiments with similar, if not the same, results was passed on by word of mouth and it became tbe standardised method of breadmaking, then beer making, at some later date.

[@rockabrilia]

Amazing how the Egyptian can found yeast during ancient times!

[@annasun6420]

Yes! I was just wondering what they harvested their yeast from?

[@oneeGrimm]

All though i sped this up, haven't noticed where it explains "What is yeast?".

[@annasun6420]

Right at the start, but its easy to miss. The man in the woods mentions that yeast is fungi! 😆 A little gross, but cool too!

[@billyandrew]

​@@annasun6420 Actually, it's a bacteria, not a fungi.

[@Krugster]

​@@billyandrewyeast is fungi

[@chlorone]

good thing they didnt show how to extract the microscopic fungi from the rotten trees n stuff. else people would be raiding the forests for their homemade yeast ;D

[@alchinov4695]

What about yeast that just grows on its own when making fermented products without any starter culture?

[@RJ-wx3fh]

I think the same natural places as mentioned at the start, but odd particles will be picked up into the breeze. As far as I understood it, homemade fermented stuff without a starter culture picks up spores and bacteria from the air and it changes depending on season and location.

[@billyandrew]

It's a bacteria, which is found in the air, making it easy to attract to a starter, even in your home. Thatl's why it's attracted to dead oaks.

[@billyandrew]

The professor forgot to mention the yeast in the air. Most remiss of him. It's abundant in people's homes, which is why it's so easy to cultivate your own for baking, creating an endless supply at a fraction of shop prices.

[@tfries1607]

Fun fact, if you get lost when searching in the woods , just head yeast to find your way back. 😢😮😂

[@treyondaren3542]

I GOT A QUESTION... WHat i need to do to make blocks of yeast in home? DOsnt matter if its take a week or longer. And im refering to Fresh Yeasts cubes, not sour sourdough starter. I looked up and i can use dried fruits to get yeast. WHat i want is to make fresh yeast cubes on my own

[@KaleidoSTAR_PH]

Yeast: * plays ESC 2021 Moldova entry *

[@zoubialazebrette6029]

Wait so if I try to bake some bread with beer est, will it not work at all or just taste funny ??

[@mezza_ph]

So fascinating

[@StoneBubbles]

I thought it came from the yeaster bunny

[@deviandriyanti9891]

Very interesting!

[@kyriacosgeorgiou6935]

the first person who used yeast to make bread lets say .How did he come up with the idea .i always wonder how our ancestors new what to eat. plants good for deferent problems .

[@sarahmakama9460]

Which method of fermentation is used to produce bakers yeast?

[@billyandrew]

Flour and water. The flour contains starch, which the water draws out. Add sugar, such as molasses, honey or sugar itself, throw in some heat to incubate the mixture in a confined space and the yeast feeds and reproduces. This causes Co2, which makes bread rise.

[@paulwright8378]

I remember an episode of a yeast on a piece of paper in Poland,where is that episode 🤔

[@Ayush..91]

2:59 in simple words it is gur

[@justinscarritt964]

Still don't explain where the vial of yeast is collecyed from originally.

[@marystirrett7225]

Yeast is on everything. Including people.

[@darkden123]

and it poops alcohol. what a weird thing

[@Themis33]

So what would happen if you put a thrush tablet in a pint of beer?

[@Gab-mf6xq]

Chris Pratt is branching out

[@tfries1607]

Lol

[@tfries1607]

Lmao

[@billyandrew]

He wooden do that, would he?

[@bettybultema]

I thought that yeast is dangerous to humans

[@patricksanders858]

No, you wont be 10 ft talk but the yeast in your bowels will be happy!

[@alfredloo4671]

Harvesting wild yeast is akin to catching pokemon

[@eggxecution]

yeast indeed

[@bdot02]

Why do they start from one gram instead of one kilo? Seems like you could cut production time in half by just starting with a kilo.

[@chlorone]

if you listened carefully the yeast is a microscopic organism/fungi that grows in rotting vegetation. what they did not show here is actually how they extract the microscopic fungi to gain that 1 gramm of yeast i also could imagine that the yeast fed sugar to grow that large in the tanks also suffers a bit quality compaird to the 1g yeast it started with

[@bdot02]

@@chlorone at the factory, they start from one gram. They had a whole fridge worth of different strains.

[@dougaltolan3017]

Where do you get the 1 kilo? You grow it. Why not take 1 kilo from the last batch? It is vital to maintain genetic purity, what comes out of the batch fermenter is probably mutated (a bit). The mother cultures in the fridge are checked every time they are replaced. That can only be done in very small quantities.

[@tomgucwa7319]

You trade taste and smoothness for speed , fast high alcohol content wines are what prisoners make ; they don't care about taste or a heavy hangover - they wanna get drunk -and they are in a hurry.

[@dougaltolan3017]

@@tomgucwa7319 yup, fast is yeast and sugar, ready in a week.

[@johnreid5814]

Eat and drink the body of yeast.

[@abdhaiamrialias9794]

Yeast came from east

[@brittanymwancientlight]

🌤

[@Tailototefono]

io maalo

[@siadbarre5636]

00000000000000000

[@samaradella]

Another failure video that doesn't tell you what is yeast made from

[@billyandrew]

Bacteria, that's fed flour, sugar and water in a 2.1.1 ratio.

[@kekokasualtuvoaki1762]

Sup yall KEKO WAS HERE

[@Shekinah-yy7xd]

Boring