Knowledge Base

Fermented Plant Juice

FPJ

Plant ferment · Master Cho · KNF

Sugar-pulled sap of fast-growing plant tips — a living enzyme tonic that pushes young plants to grow fast and strong.

Grow (N)
Easy to make
5–7 days ferment
1:800–1:1000 dilution
nitrogen, enzymes, microbes supplied
＋ Start a batch from this recipe

Dilution calculator

Dilution 1:800–1:1000

Enter a water volume to see how much to add.

Ingredients

  • Vigorous growing tips (mugwort, bamboo shoot, sweet-potato vine)1 part by weight
  • Brown sugar or jaggery0.5 part by weight

How to make it

  1. Step 1

    Gather vigorous growing tips at dawn. Do NOT wash — the wild yeast and lactic bacteria live on the leaves. Cut to 3–5 cm.

  2. Step 2

    Weigh the plants, then add half that weight in brown sugar.

  3. Step 3

    Mix by hand until glistening. Rest 1–2 hours under breathable paper.

  4. Step 4

    Pack into a jar to ⅔ full — the empty ⅓ is working air. Weight it down with a clean stone.

  5. Step 5

    After 1–2 days remove the stone, cover with paper + rubber band, keep cool and shaded.

  6. Step 6

    Ferment 5–7 days — done when it smells sweet-sour and liquid has pulled from the plants.

  7. Step 7

    Strain off the amber juice. Store cool; add a little sugar for long keeping.

What it is

FPJ is the plant's own sap and chlorophyll pulled out by sugar (osmosis) and fermented by the wild lactic-acid bacteria and yeast already living on the leaves. The result is a rich enzyme solution packed with growth hormones — a tonic that invigorates young plants and animals.

On the Nutritive Cycle: FPJ is a vegetative-stage input. It feeds the C→N push while a plant is building roots and leaves. Ease off once the plant switches to flowering, or you'll force overgrowth.

When to use it

  • Germination → early growth — mugwort or bamboo-shoot FPJ at 1:1000 to make crops cold-hardy and fast.
  • Vegetative growth — arrowroot / bamboo / reed FPJ at 1:800–1:1000 to build leaf volume (nitrogen).
  • Best trick: FPJ made from the same crop you're feeding gives the strongest results.

Do NOT use during overgrowth, prolonged rain or cloud, or when the crop is already nitrogen-rich (it attracts pests).

Materials

  • Vigorous plant tips — 1 part by weight
  • Brown sugar / jaggery — ½ part by weight
  • Wide jar (clay or glass), breathable paper, rubber band, one clean stone

How to make it

  1. Collect at dawn, don't wash. Shake off dirt only. Cut to 3–5 cm to open more surface area for osmosis.
  2. Sugar it. Weigh the plants, add half their weight in brown sugar, mix by hand, rest 1–2 hours.
  3. Pack ⅔ full. The empty third holds the air the ferment needs. Press down with a clean stone.
  4. Breathe, don't seal. After 1–2 days pull the stone and cover with paper. Keep cool and shaded.
  5. Wait 5–7 days. Ready when sweet-sour and juicy.
  6. Strain and store. The amber liquid keeps ~30 days at room temperature, up to a year cold (1–15 °C).

Signs it worked / troubleshooting

  • ✅ Good: sweet-sour smell, amber liquid pulled from the plants.
  • ⚠️ Bubbles or fungus on top = too little sugar or wrong jar fill → stir in a little sugar, strain, keep going.
  • 🚫 Foul rot smell, black or slimy = contaminated → discard and restart with more sugar.

How to store

Brown-glass or clay jar, cool and dark. Cold storage (1–15 °C) keeps it up to a year; otherwise use within 30 days. Never seal a still-active ferment tightly — it needs to breathe.

Related

FFJLABIMOOHN