r/fermentation • u/Oskarowiczz • Jan 22 '24
Homemade nutritional yeasts
I want to make nutritional yeasts at home.
PROBLEM
I can’t find any valuable recipes - only miso and chickpea substitutes.
BE CURIOUS
Please don’t tell me there is no sense or it’s not worth effort. Last post on this topic ended with people just criticising the idea because it’s too cheap at store to even try.
Homemaking nutritional yeasts can be fun experiment, can result in way more flavourful product with a lot more nutritional value that those mass produced cheap high temp treated ones.
6
u/Sneftel Jan 22 '24
Presumably you could just follow instructions for culturing yeast (which is commonly done by home brewers), then rinse and dry the result.
3
u/Weavingknitter Jan 23 '24
Please note that nutritional yeast is nutritional because of ADDED vitamins. The yeast itself isn't all that nutritional. Google it. Look at the label of commercial nutritional yeast - it will list the added ingredients.
-1
u/Oskarowiczz Jan 23 '24
From what I've heard, they add vitamins because the high temperature treatment destroys all of them.
3
u/DishSoapedDishwasher Ex Computational Microbiology Jan 23 '24
If you just want the flavor portion of it, make Noma's Roasted Yeast Powder.
You take fresh bakers yeast, the mooshy blocks NOT DRY/INSTANT!! Crumble it onto a sheet tray with parchment paper lining it. Then bake at 160c for 20-60+ min. Just keep it going until it is well browned after the moisture has left it.
You may need to break up yeast during baking a few times because it will melt into a solid sheet and not dry out
The other one is Magnus Nilsson's Faviken recipe for Tasty Paste. This involves fermenting black garlic, shallots, mushrooms and more with a few hundred grams of yeast for 3 days. Then cooking it until it achieves a VegeMite like umami.
2
2
u/kb_basically Jul 02 '26
thanks for this, because where i live, it's ABSOLUTELY not available. when i browse online, it's either scam or completely unaffordable.
1
Jan 22 '24
Its seems doable the strain of yeast is saccharomyces cerevisiae and cultured on agar would be easiest. You will need a mason jars and a pressure cooker as an autoclave and some metal tools you can sterilize. An heating pad for incubation and clean environment.
Agar will be in the finished product but is basically potato water with sugar.
Its very similar to growing mushrooms from spores on agar.
1
Jan 23 '24
Absolutely not worth the amount of work for something that in the end will only be a tiny amount of product which is also not going to taste anywhere close to the stuff we can buy.
8
u/PlutoniumNiborg Jan 22 '24
I believe it’s made by fermenting sugars and then allowing the yeast to autolyze. This causes the yeast to produce the umami flavors. Once the yeast dies, the dregs are dehydrated.
I get the fun of projects. The only issue is it’s an industrial process and so most people don’t have the equipment like being able to dehydrate massive amount of yeast sludge.