What are the flavor differences among red, yellow, orange, green, and purple tomatoes?
Generally speaking, yellow and orange tomatoes tend to be less acidic than red and are therefore sweeter. These tomatoes have a fruity, almost tropical flavor as a result of their low acidity. Because their sugars aren’t fully developed, green tomatoes have a tart, citrusy tang. Purple and blackish varieties have a complex flavor similar to red wine. In general, when is it necessary to peel tomatoes? Since peeling tomatoes is time-consuming, I avoid the process whenever possible. For most salsas, salads, and sandwiches, or when eating out of hand, the skin holds the tomato together, so peeling is unnecessary. For more delicate soups and sauces, like our Tomato Garlic Soup with Parmesan Croutons, the peel can be a nuisance. To peel, use a small paring knife to score the bottom of each tomato with an “X,” cutting just through the skin but not into the flesh. Place the tomatoes in a pot of boiling water for 30 seconds. Remove them with a slotted spoon; quickly plunge the tomatoes into a b