This is a chemical change.
Yes, when you add an acid, like vinegar, to milk a chemical reaction occurs. The acid causes milk to curdle. In fact, by adding vinegar to milk you can make cheese! http://www.wikihow.com/Make-Cheese-at-Home
Cheese can be made using milk and vinegar by heating the milk, adding vinegar to curdle it, straining the curds from the whey, and pressing the curds to form cheese.
Tabasco contains quite a bit of vinegar so yes it will curdle milk due to the vinegar.
Vinegar makes milk curdle and the nature of vinegar is to not mix.
Olive oil and balsamic vinegar dressing can curdle due to the separation of oil and vinegar, especially if the ingredients are not emulsified properly. If the vinegar is too acidic or if the dressing is stored at a cold temperature, it can cause the oil to solidify and clump together. Additionally, if there are any dairy ingredients included, they may curdle when mixed with the vinegar. To prevent curdling, ensure proper emulsification and store the dressing at room temperature before use.
To change into curd; to coagulate; as, rennet causes milk to curdle., To thicken; to congeal., To change into curd; to cause to coagulate., To congeal or thicken.
Vinegar is 5 percent acid, the acid will cause the milk to sour or the technical term is curdling.
When vinegar is added to milk, a chemical reaction occurs causing the milk to curdle and form lumps. This is due to the acid in vinegar causing the proteins in the milk to denature and clump together, separating into curds (solid) and whey (liquid). To show this, you can pour vinegar into a beaker of milk and observe how the milk starts to curdle and separate into curds and whey.
the solid mass are the proteins in the milk reacting with the acidic vinegar. Sour cream is made in the same way by adding lemon juice (acid) to heavy cream. The acid will react with the protein in the cream and thicken it.
Hollandaise sauce can break or curdle if the heat is too high, causing the eggs to cook too quickly and separate from the butter. Adding the butter too quickly can also cause the sauce to break. Additionally, if the sauce is overheated or not whisked constantly, it can curdle.
Mixing lemon juice with milk would be a chemical change because the acid in the lemon juice can curdle the proteins in the milk, leading to a change in the chemical composition of the mixture.
Gratins will curdle if anything acidic is added to the milk or cream. For example lemon juice and vinegar will make milk curdle, as will some alcohols. Sometimes cooking cheese based dishes on a very high temperature will make the cheese overcook and look slightly odd, but that's different to curdling.