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I would estimate a two hour limit for keeping yogurt at room temperature. Personally, I take it out of the refrigerator and eat it immediately. I see no need to keep it at room temperature.
A few hours to a few weeks, depending on the temperature at which the yogurt is stored.
Milk has a yogurt culture added to it, and is kept at the correct temperature for the bacteria of the culture to grow. The milk is converted to yogurt. You can then add any flavorings or additions you like.
you can freeze containers of yogurt, but it will take a lot of time. approximately three to eight hours to freeze because the yogurt reacts to the temperature in the freezer (or wherever you have put the yogurt to freeze). But the yogurt will still freeze because the temperature is more stronger. so it will take approximately three to eight hours depending on the flavour or/and ingredients.
The answer depends on whether or not the yogurt is at room temperature or refrigerated. Frozen is another entirely different category. Can you clarify?
Lactic acid
lactate
The ideal temperature for yogurt to harden is below zero degrees Fahrenheit. You can also store frozen yogurt on a spill-proof yogurt paper cup with a matching lid to keep the yogurt staying fresh. Yogurt cup made from premium quality double poly paper is the ideal container for soft-served yogurts.
Pathogens can enter yogurt if unpasteurized milk was used and if the temperature was not brought up to temperature before inoculating the milk with the yogurt cultures. Spoilage of the milk would occur if the temperature was not brought to 80 degrees celsius for 15 minutes. Pathogens also enter if food handling procedures are misused or if there are unsanitary practices. This all can be prevented by proper temperatures, proper food handling and hand washing practices.
the temperature the amount of bacteria added fermentation time acidity regulations the protein levels of the milk different consistencies moisture levels when it is being produced
Yogurt usually lasts longer in the fridge. But yogurt would last between 1-2 weeks.(According to most expiry dates)