Pickled red onions are commonly sold sliced, shaved, or chopped (in pieces), depending on the product and intended use.

Common flavor profiles include classic brine-style pickling, sweet or sweet-and-tangy varieties, and lightly fermented notes that add depth and tang.

They are typically labeled “ready to eat” and include basic nutrition and packaging details, such as net weight (often 16 fl oz jars) and calories per serving (for example, 20 calories per serving).

Pickled red onions are used to add brightness, crunch, and tang to salads, burgers, tacos, sandwiches, avocado toast, and rice bowls — and many people also enjoy them straight from the jar.

Product listings often note dietary and ingredient attributes such as gluten-free or certified gluten-free, vegan, kosher, low-calorie, and statements like no artificial colors or flavors.

Pickled red onions are typically crunchy or crisp with tangy and sometimes sweet notes; they’re described as fresh and flavorful, with a vibrant taste that enhances dishes.

Some product details indicate options are gluten-free or certified gluten-free, and at least one listing states it does not contain any of the nine major allergens.