Deutsch: Blanchieren / Español: Escaldar / Português: Branqueamento / Français: Blanchir / Italiano: Sbiancare

Blanching is a cooking process whereby food, usually vegetables or fruits, is briefly immersed in boiling water and then immediately cooled down in ice water. This technique helps to preserve the vibrant color, texture, and nutrients of the food while also stopping enzymatic actions that can lead to spoilage.


Blanching is typically used as a preparation step before freezing, canning, or further cooking. It involves submerging food items in boiling water for a few minutes and then quickly transferring them to a bowl of ice water to halt the cooking process. This method is particularly effective for enhancing color, easing peeling (as with tomatoes and peaches), and removing strong flavors from certain vegetables like onions or cabbage.

Application Areas

Blanching is utilized in several culinary practices:

  • Freezing Vegetables: Blanching vegetables before freezing them helps to maintain their quality by deactivating enzymes that could cause loss of flavor, color, and texture.
  • Food Preparation: Blanching can soften vegetables to the perfect texture for salads and stir-fries, making them easier to digest and blend with other ingredients.
  • Peeling: Blanching aids in loosening the skins of fruits and vegetables, such as tomatoes and peaches, making them easier to peel.

Well-Known Examples

Common examples of foods that benefit from blanching include:

  • Green Beans: Blanching helps to maintain their crispness and vibrant green color.
  • Almonds: Blanching almonds makes it easy to remove their skins for use in recipes like marzipan or almond flour.
  • Broccoli and Cauliflower: Blanching these before adding to dishes or freezing helps in preserving their texture and nutrient content.


Basic Blanching Technique: Ingredients:

  • Vegetables or fruits of your choice
  • Water
  • Ice


  1. Prepare Ice Bath: Fill a large bowl with ice and water. Set aside near your cooking area.
  2. Boil Water: Bring a large pot of water to a boil. Add a pinch of salt if desired to enhance the flavor of the vegetables.
  3. Blanch Vegetables: Add the prepared vegetables or fruits to the boiling water. Let them cook briefly. Typical times range from 30 seconds to a few minutes, depending on the type and size of the food.
  4. Cooling Shock: Using a slotted spoon, immediately transfer the blanched items from the boiling water to the ice bath. This stops the cooking process and preserves the texture and color.
  5. Drain: Once cooled, drain the items and proceed with your recipe or pack them for freezing.


Blanching is a crucial culinary technique used to prepare foods for freezing, ease of peeling, or to enhance their appearance and texture in dishes. It is a simple yet effective method that can be applied to a wide range of fruits and vegetables to maintain their quality and nutritional value.


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