1. Ingredients: Condensed milk is made primarily from milk or other animal dairy products, and water is removed to increase its consistency through a process of dehydration and concentration. Salad dressing, on the other hand, is a flavored sauce made from a mixture of vegetable oil, vinegar, egg yolks, spices and seasonings.

2. Uses: Condensed milk is mainly used to spread on bread for consumption and as an additive to desserts and coffee. And salad dressing is mainly used to add flavor to salads, sandwiches, burgers and other foods.

3. Texture and taste: Condensed milk has a thick texture, similar to the form of concentrated milk or syrup. The taste is sweet and creamy and can be consumed directly. Salad dressing, on the other hand, is a creamy or yellowish milky liquid with a thinner texture. It has a sweet and sour or spicy taste and is usually used as a dipping sauce.