This brand offers a yogurt maker model with electronic temperature control that maintains an optimal temperature during preparation, but it does not have adjustable temperature settings; the ripening time can be set from 1 to 18 hours, but temperature is fixed for the JG 40 model. The temperature is controlled electronically to ensure optimal conditions but cannot be manually adjusted to specific values like 35-38 °C required for L. reuteri yogurt fermentation.
However, another model from the same brand, the JG 80, features four preset temperature programs including one at 38 °C, which is suitable for vegan or lactose-free yogurt and could be used for L. reuteri yogurt fermentation. This model allows temperature selection among preset options and adjustable fermentation time up to 24 hours, which fits the 24-48 hour fermentation requirement better.
In summary, the JG 40 does not have temperature adjustment suitable for L. reuteri yogurt, but the JG 80 model from the same brand does offer temperature control at 38 °C and adjustable fermentation time, making it more appropriate for your needs.
The appliance should not be filled with water. It is specially designed for the production of yoghurt and other dairy products and does not require water filling for operation. Temperature control and fermentation take place directly in the glass containers, which are filled with the milk mixture.
I have never used other jars, but I can imagine that it also works.
The main thing is that the yoghurt maker can be closed completely so that the temperature remains constant while the yoghurt is ripening.
For delicious yoghurt you need 1 Bifidus natural yoghurt from Migros (these are particularly suitable, or rather I was advised to use them) and 1 litre of whole milk. Stir both elements together, fill into the jars, close with lid and put into the machine for 9 hours. I always use a new yoghurt for the production, you can also use a homemade yoghurt, but they became a bit sour, which tasted a bit less to me. A tip: buy reserve jars so that you can make the production a little faster. Keep 3 jars ready for this, and it is also a reserve if one should break.
Yes, it works, regardless of the appliance. It does nothing other than produce the incubation temperature, which must never exceed 45°C for yoghurt bacteria. What the bacteria get to "eat" is up to you. :-)
The 8 portion glasses (made of glass) à 150 ml, each with lid (plastic) and date display. The housing is made of plastic and stainless steel, the transparent lid is also made of plastic.
We use the appliance regularly and enjoy fresh homemade yoghurt. The Rommelsbacher JG 40 is easy to use and cleaning afterwards is also very simple. The portion jars with lids are even dishwasher safe.
Maybe you don't use a solid yoghurt to make it?
or try using a different milk?
i don't like stiff yoghurt :) i think the machine is tiptop. but i don't use it very often.