What raw materials are used to make yogurt?

* Milk: This is the primary ingredient. It can be cow's milk, goat's milk, soy milk, almond milk, or any other type of milk you prefer.

* Live Yogurt Cultures: These are the bacteria (usually *Lactobacillus* and *Streptococcus* species) that ferment the lactose in milk, producing lactic acid and transforming it into yogurt. You can buy these as starter cultures, or they can be added from a small amount of existing yogurt.

That's it! Some additional ingredients are often added for flavor and texture:

* Sugar: To sweeten the yogurt.

* Fruit: For flavor and sweetness.

* Flavorings: Vanilla, honey, etc.

* Thickening agents: Pectin, gelatin, etc.

* Salt: A small amount can enhance flavor.

While seemingly simple, the process of making yogurt involves carefully controlling temperature and time to allow the cultures to ferment the milk properly.