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Fermented Plant Juice (FPJ)

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Fermented Plant Juice (FPJ)

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Extract of fermented sap from fast-growing tender shoots

Biostimulants Fermentation

Fermentation

Biological transformation of the plant material by microorganisms (yeasts, bacteria) in total or partial absence of oxygen, releasing and transforming active compounds over a longer period than the other techniques (days to weeks).

Process summary

1) Chop the plant material and submerge it in water, in a wide, non-airtight container (to let gases escape). 2) Stir daily during fermentation. 3) Let ferment from several days to several weeks, depending on ambient temperature, until it stops foaming. 4) Strain and dilute before use — the undiluted product can be very concentrated.

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 🟠 Not prohibited

A dark, aromatic liquid rich in enzymes, plant hormones, organic acids, and microorganisms, obtained through the osmotic fermentation of tender sprouts with brown sugar. It stimulates vegetative growth, rooting, and microbial activity in the soil.

Application

Application description: Apply diluted in water (1:500 to 1:1000) by watering the soil or spraying the foliage, preferably at dawn or dusk. Repeat every 7–10 days during the vegetative growth phase, avoiding application during flowering due to its growth-stimulating effect.

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Regulatory status

🟠 Not prohibited (made on the farm for own use)

No European text names “Fermented Plant Juice (FPJ)”. Made on the farm for one’s own use as a biostimulant, it falls under no authorisation regime: Regulation (EU) 2019/1009 only covers products placed on the market. Its ingredients are ordinary foods, but no text describes this fermented preparation: in organic farming, the certification body will decide. Its ingredients appear on the organic input lists of several countries: see each country’s page.

Official texts

Official sources automatically checked on 20/10/2026.

What the icons mean: ✅ Authorised ⚠️ Tolerated 🟠 Not prohibited ⛔ Not authorised EU 🔎 Status being verified Full details →

Documentary information, checked on 20/10/2026. Not a substitute for legal advice; regulations may vary from country to country. See the regulations · Substances authorised in Europe

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