Differences between Red and White Onions:
Red onions have a dark red to purple outer layer. The inside is white. Overall, it has a unique look. But white onions are completely white, and their inside is also white.
Red onions can be eaten raw as well as cooked. But white onions are mostly used in Western foods, especially in soups.
Red onions have a slightly spicy taste. Its taste enhances the overall flavor of the food. But white onions have a sweet taste. That's why they are used in foods like soups and sandwiches.
Red onions have less water content. But white onions have more water content