You also have to let the soup cool down a little so that pressure doesn't build up inside the blender and cause the lid to pop off. It often has to be done in batches, which requires an extra pot or bowl. What You Need to KnowĪnyone who has pureed hot soup in a countertop blender knows it can be a hassle. It’s also considerably less expensive than many models on the market. We love its satisfyingly simple controls and impressive pulverizing ability. Our winner, the Braun MultiQuick 5 Hand Blender, is lightweight and compact. The best immersion blenders are great for blending hot soups on the stovetop and can also blend frozen fruit for smoothies and even emulsify mayonnaise.