If the yoghurt is stored at refrigeration temperature then it is unlikely that this would happen (fermentation microorganisms don't work very well at this low temperature).
No, all yogurt is just milk with a culture agent to make it ferment.
A type of bacteria is added to milk to allow it to ferment.
no not yogurt its the worst thing as it is stale
Usually until the expiration date.
In a plastic cup, either with a plastic lid or a peel-off aluminum foil lid.
Bacteria ferment milk to yogurt or other milk products, ferment flour for baking bread or other similar things, degrade the human wastes, are a few examples.
Microorganisms are used to ferment grain for beer and grape juice for wine. They are also used to make milk into cheese and yogurt.
Yes. The date on yogurt is not an expiration date, is is a "best by" date. Yogurt will usually keep for a few weeks after this date. If it still looks and smells ok, then it is.
When making homemade yogurt one needs to have either freeze dried starter culture or a container of plain yogurt with active yogurt culture. Once an individual makes a first batch of yogurt, a small part of it can then be used to start the next batch.
The expiration date of a yogurt does not have any relation to the end of the world. The end of the world refers to catastrophic events that could potentially wipe out humanity or cause significant changes to our planet. It is a hypothetical scenario that is not influenced by the expiration date of a yogurt or any other individual item.
Milk. Yoghurt is made in the same way a cheese. Special bacteria are used to ferment the milk to create one or the other.
A fermentation process is used to make yogurt. Milk contains the sugar lactose; and some bacteria will ferment lactose to produce lactic acid. the lactic acid clots the milk protein, and give the yogurt its sour taste. Fermentation is just another name for anaerobic respiration.