Pine tree bark flour is a nutritious and versatile food source that has been used by various cultures for centuries. This comprehensive overview will explore its nutritional content, suitable pine tree species, and the process of drying and grinding the bark to create flour.
What is the Nutritional Content of Pine Tree Bark Flour?
Pine tree bark flour is rich in carbohydrates, fiber, and various vitamins and minerals. The exact nutritional content may vary depending on the species of pine tree and the processing method. Here are the approximate values per 100 grams of pine bark flour:
| Macronutrients | Amount |
|---|---|
| Carbohydrates | 82 grams (82%) |
| Protein | 2 grams (2%) |
| Fat | 0.5 grams (0.5%) |
| Micronutrients | Amount |
|---|---|
| Vitamin C | 20-30 milligrams (20-30%) |
| Fiber | 10-15 grams (10-15%) |
| Calcium | 200-300 milligrams (20-30%) |
| Iron | 5-10 milligrams (5-10%) |
What Pine Tree Species are Suitable for Bark Flour?
Several species of pine trees can be used to produce bark flour. Some of the most commonly used species include:
- White Pine (Pinus strobus): Native to eastern North America, this species is known for its soft, edible bark.
- Scots Pine (Pinus sylvestris): Found in Europe and Asia, this species is commonly used in Scandinavian cuisine.
- Jack Pine (Pinus banksiana): Native to eastern North America, this species has a smaller, more delicate bark.
How to Dry and Grind Pine Tree Bark to Create Flour?
Here is a step-by-step guide to drying and grinding pine tree bark to create flour:
- Harvesting: Peel the bark from the tree, ideally in the spring when it is most tender. Avoid taking too much bark, as this can harm the tree.
- Drying: Dry the bark strips in the sun or using a food dehydrator until they are crispy. This process typically takes 1-2 days, depending on the weather.
- Grinding: Grind the dried bark into a fine flour using a blender, food processor, or mortar and pestle. This process typically takes 10-30 minutes, depending on the equipment and desired texture.
What Tips and Equipment are Recommended for Making Pine Tree Bark Flour?
- Equipment: Use a food dehydrator or a low-temperature oven to dry the bark. A blender or food processor is ideal for grinding.
- Tips: Ensure the bark is completely dry before grinding to prevent mold. Store the flour in an airtight container to maintain freshness.
Reference:
- Survival Foods: Can You Really Eat Tree Bark? – Outdoor Life (2011)
- USE OF PINE INNER BARK FOR FOOD IN SCANDINAVIA AND NORTH AMERICA – USDA Forest Service (2009)
- Tree bark – Nordic Food Lab Archive – WordPress.com (2015)