How to Make Rosemary Powder at Home

Step-by-Step Instructions :

1. Harvest and Clean

  • Pick fresh rosemary sprigs.
  • Rinse them gently under cold water to remove any dirt.
  • Pat completely dry with a clean kitchen towel. (Moisture can cause mold during drying.)

2. Dry the Rosemary

You have two options:

Oven-Drying Method

  1. Preheat oven to 95°C (200°F).
  2. Spread rosemary sprigs evenly on a baking sheet.
  3. Bake for 2–4 hours, checking every 30 minutes until the leaves are brittle and dry.

Air-Drying Method

  1. Tie sprigs in small bundles with string.
  2. Hang upside down in a warm, dry, well-ventilated space for 1–2 weeks until fully dried.

Dehydrator Method

  • Place sprigs on dehydrator trays and dry at 95°F–115°F (35°C–45°C) for 6–8 hours.

3. Strip the Leaves

  • Once dried, remove the rosemary leaves from the woody stems.

4. Grind into Powder

  • Use a spice grinder, blender, or mortar and pestle to grind dried rosemary leaves into a fine powder.
  • Sift through a fine mesh sieve if you want an ultra-smooth powder.

5. Store

  • Transfer rosemary powder into a clean, airtight glass jar.
  • Keep in a cool, dark place. Properly stored, it will last for up to 1 year without losing much flavor.

How to Use Rosemary Powder

  • Sprinkle over roasted potatoes or grilled vegetables.
  • Mix into marinades for chicken, lamb, or beef.
  • Add a pinch to homemade bread dough for an herby aroma.
  • Stir into soups, sauces, or stews for depth of flavor.
  • Brew into herbal tea with lemon and honey.

Final Tips

  • Always ensure rosemary is completely dry before grinding—any leftover moisture can spoil the powder.
  • For maximum flavor, grind in small batches and store tightly sealed.
  • Pair rosemary powder with thyme, oregano, or garlic powder for an all-purpose seasoning mix.

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