Today I made sour cream with sourdough right in the bowl. When preparing, I always use only dry starter cultures.
To sterilize the bowl and the inner lid, pour cold water into the bowl 2 fingers high and start the Steam mode. When the water has already boiled, I put a whisk in the bowl, lower the lid, the whisk is also bathed in steam. Gently pour out the boiling water and set the bowl aside on the wire rack to cool. I pour in milk, cream (just opened, everything at room temperature, UHT), stir and start the Yogurt mode 2. Pour in the dry starter culture and stir it only after 30 minutes, when the liquid is warmed up. There will be less snotty. Bacteria protect themselves this way if they enter an uncomfortable environment.
I know that the greatest usefulness when fermenting for at least 6-8 hours, when the primary lactobacilli are destroyed and enrich the product. I did not have the opportunity to control the sourdough for 12 hours, there was a high probability that the sour cream overcooked. I set the Yogurt2 mode, but reduced the time to 4 hours, and took it out of the multicooker and put it in the refrigerator only after 12 hours. Sour cream 5%: milk 2.5% 1 liter, cream 20% 350ml. Stirred with a whisk. Just don't stir quickly, so as not to knock down the foam.
The result is excellent! Sour cream after the refrigerator is medium thick, despite the low fat content, not peroxidized, without separation of whey.
The first time I made such low-fat sour cream. I thought that there would be no density.
Are destroyed? I thought they were multiplying there ...
Bacteria wake up, develop, multiply, one generation gives birth to the next, and after a while the generation cycle ends. Therefore, it is better not to rush to ferment and give time for fermentation at least 6, and preferably 8 hours. This applies to DRY leaven.
Different sourdoughs are fermented at different times. It is necessary to look at the condition of the clot. It is not entirely correct to give recommendations on the time, dry sourdough can ferment for 9-10 hours, but at Evitalia it fermented in 6.5 hours. This is, of course, a different topic, but this is what the experts write.
Any fermentation, and not only in the dairy industry, is a directed reproduction of microorganisms in the environment.In the case of the preparation of fermented milk products, this is the reproduction of lactic acid microflora.
Although the density depends not only on the fat content and on the time and temperature of fermentation. The most dense is the thermophilic streptococcus, which is not very interesting in terms of usefulness. So the density is not a determining sign of the "goodness" of yoghurts and other fermented milk products.
Provided that it is in the leaven.
Rick,
I am not making an exact recommendation for fermentation times. After all, lactobacilli can develop in a certain temperature range. If the device maintains the maximum permissible temperature, the fermentation will be faster. I am only talking about extending this process in time, turning off the heating a little earlier. The temperature slowly decreases, the multicooker plays the role of a thermos. The clot then forms later, the utility is greater. If it takes 8 hours, that's good.
Pharmacy evitalia and dry ferments of direct fermentation still differ.
Thermophilic streptococcus is often included in starters along with other crops, and in the store product it is mainly predominant.
You are talking about 6-8 hours of fermentation. Someone will read this, put the fermentation on for 8 hours and after this time they will not receive ready-made yogurt. And there will be a bad slow cooker, and not the one who recommended to put it on for 8 hours.
Why stretch the process over time? Ferment manufacturers give a certain fermentation temperature at which the best quality product is obtained. And no lowering of temperature and stretching in time improves this quality! What makes you think that lowering the temperature increases utility? Not a single starter manufacturer mentions this.
Mannochka! Sorry for the flood! Just following these recommendations and not getting the desired result, they will begin to say that this slow cooker does not work well. And so something, but she makes yogurt perfectly. And it keeps the temperature perfectly, exactly set, without any increases or decreases, which is required to make good yogurt.
Agree with Rick... It is best to follow the manufacturer's instructions. And there already, who does not like "add / subtract to taste".
In any mv / s I get wonderful yogurt from Evitalia after 11 hours of cooking. And I never sterilize anything.
I repeat, it is good if fermentation with dry starter cultures occurs in at least 8 hours. If a person's dry starter culture in a slow cooker thickens faster, then when using the same starter culture the next time, you can lengthen the process by turning off the device a little earlier and let the bacteria work in a certain temperature range that is comfortable for them. If a clot forms during the constant operation of the multicooker after 8 hours or more, then there is no need to interfere with the process.
The multicooker works correctly in all three modes of Yoghurt, as stated by the manufacturer in the instructions. This was checked by me many times with an electronic temperature probe. The multicooker was purchased to take advantage of its low temperature capabilities, and I am very pleased with it.
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701st on Yogurt modes:
Yoghurt1 37-39 deg., Timing 1-24 hours;
Yogurt2 36-37 deg., Time selection 1-24 hours;
Yogurt3 38-40 degrees. - 6 hours, 60 degrees. - 30 minutes, 70 degrees. 30 minutes, nothing can be changed.
My conclusions: my multicooker maintains the temperature according to the instructions. In the subject, the girls tried all the modes, cooking both in jars and in a bowl. In the end, the end result depends on experience, knowledge and experiment. The multicooker performs its functions perfectly. Thanks to the developers!
Quoting post 150 from here:
https://Mcooker-enn.tomathouse.com/in...987.0
First, the bacteria (if dry sourdough is used) gain moisture and begin to revive. After about two hours, they begin to divide, doubling their number every 30 minutes. In the process of their vital activity, bacteria process milk sugar - lactose into lactose and other organic acids, synthesize vitamins, polysaccharides, amino acids and other biologically active substances.The composition and amount of certain metabolites synthesized by bacteria depends on the type of bacteria and the specific characteristics of the strains used. When a certain concentration of acids is reached (65-70 degrees. Turner), the milk protein is curtailed and a sour milk clot is formed. The concentration of bacteria in the finished product can reach 10 to the 9th degree CFU / g. If the fermentation process is not too fast (preferably at least 8 hours), then some of the bacteria of the first generations have time to die during this time, their cell wall dissolves and the product is additionally enriched with just a storehouse of useful substances
Here is a link to all posts by the sourdough specialist. There, and about the pharmacy starter culture dietary supplements, everything is explained.
https://Mcooker-enn.tomathouse.com/in...9036;sa=showPosts;start=0