Water Soluble Calcium Phosphate

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🧪 How to Make Water Soluble Calcium Phosphate (WCP) at Home

Using Bones, Vinegar & Optional Citric Acid Boost

Have you ever wondered how to turn leftover bones from your kitchen into a powerful, natural plant supplement?
Water Soluble Calcium Phosphate (WCP) is one of the most valuable KNF (Korean Natural Farming) inputs, especially for flowering and fruiting plants.

Let’s walk through the beginner-friendly way to make it using bones and vinegar—and for the more advanced, an optional citric acid booster.

🌱 What Is WCP?

WCP delivers two key nutrients plants crave:

  • Calcium (Ca) – strengthens stems, prevents blossom end rot
  • Phosphorus (P) – boosts root strength, flower development, and early fruiting

It’s especially useful during the transition from vegetative to flowering stage.

🧂 Ingredients You’ll Need

  • 🦴 Animal bones (chicken, rabbit, fish—fully cleaned & dried)
  • 🍎 Raw Apple Cider Vinegar (with the mother, unpasteurized)
  • 🔥 A fire pit, wood stove, or charcoal grill
  • đź«™ A wide-mouth glass or ceramic container (no metal)
  • 🧻 A breathable cover (cloth, paper towel, or coffee filter + rubber band)
  • 🥄 Fine mesh strainer or cheesecloth

Optional for advanced users:

  • 🍋 Fresh lemon juice (5–6% citric acid) or
  • 🧪 Food-grade citric acid powder

🔥 Step-by-Step Instructions

1. Clean & Dry the Bones

Remove all tissue and fat. Let bones dry in the sun or bake at low heat (100°C) until brittle.

2. Char the Bones

This converts calcium phosphate into a reactive form for extraction.

Place bones on wood embers or inside wrapped foil directly in the coals.

Roast until they turn blackened or chalky grey, but not ash.

âś… Tip: A brittle “clink” sound when tapped means they’re ready.

3. Cool & Crush

Let bones cool, then crush into small chunks or powder using a hammer, rock, or blender.

4. Mix with Vinegar

  • Add 1 part crushed bones to 5 parts raw vinegar in your container.
  • Cover with a breathable lid.
  • The mixture will bubble—this is good!
  • Let it sit at room temperature for 10–14 days.

🧪 Optional Step: Add Citric Acid

To boost mineral extraction, add either:

  • 🍋 1–2 teaspoons fresh lemon juice per liter of vinegar, or
  • 🧪 2–3 grams citric acid powder per liter

This synergistic combo with acetic acid can improve calcium & phosphorus availability.

Do not exceed these amounts—too much acid can overshoot the pH and reduce microbial compatibility.

5. Strain & Store

Strain the liquid through a cloth or mesh, then bottle in a clean glass container.

Store in a cool, dark place. WCP lasts several months.

đź’§ How to Use WCP

Always dilute before using.

Foliar Spray (early flower / fruit set):
→ Mix 1–2 ml per liter of water
→ Spray on leaves in the early morning or late afternoon

Soil Drench (flowering & root boost):
→ Mix 2–5 ml per liter
→ Apply near root zone once every 7–10 days

⚠️ Tips & Cautions

  • 🌤 Don’t apply in direct sunlight—spray during cooler hours
  • 🔀 Avoid mixing with phosphate-rich or microbial ferments unless well-diluted
  • ❄️ Keep WCP cool, dark, and airtight to preserve it

🌿 Closing Thoughts

This is circular farming at its best:
You’re turning waste bones into a bloom-boosting tonic—safe, simple, and powerful.

Whether you’re growing tomatoes, cannabis, or flowers, WCP made with bones and vinegar (and optionally citric acid) will take your garden to the next level.

Have questions or want to share your results? Drop a comment below or tag us on Instagram @lifetonics.store 🌞

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