Fermented Plant & Fruit Juices
​Our fermented plant and fruit juices are the heart of the Korean Natural Farming tradition - concentrated botanical extracts made by coaxing the living essence from plants and fruits at their peak vitality. Each juice is slowly fermented with raw sugar, unlocking a rich spectrum of enzymes, beneficial microbes, and bioavailable nutrients that raw juice alone simply cannot offer. From the iron-rich depth of stinging nettle to the sun-sweet brightness of ripe raspberry, every batch captures the unique character of its source plant - bottled as nature intended, alive and unadulterated.
Fermented Plant Juices
Fennel
Fennel FPJ Fennel FPJ is rich in aromatic compounds and natural sugars that stimulate vigorous early growth and support beneficial soil microbes. It's particularly valued for its ability to enhance seed germination and encourage strong root development in young seedlings.
Mugwort
Mugwort FPJ is a powerhouse input known for its antimicrobial and antifungal properties, helping to suppress harmful pathogens in the soil and on foliage. It also stimulates plant immunity and is traditionally used to invigorate sluggish or stressed crops back to vitality.
Nettle
Nettle FPJ delivers a concentrated hit of iron, silica, and nitrogen, making it an exceptional tonic for overall plant vigor and resistance to pests. Regular applications are said to strengthen cell walls and improve a plant's ability to withstand environmental stressors like drought and disease.
Comfrey
Comfrey FPJ is one of the most nutrient-dense ferments in KNF, packed with potassium, nitrogen, and allantoin — a compound that actively promotes cell regeneration and tissue growth. It's best applied during the vegetative stage when plants need a rapid, deep feed to build strong stems and lush foliage.
Fermented Fruit Juices
Blackberry
Blackberry FFJ is rich in natural sugars, anthocyanins, and antioxidant compounds that energize microbial activity in the soil and support robust flowering. It's an excellent input during the transition from vegetative growth to fruiting, helping plants channel energy into blossom and fruit set.
Fig
Fig FFJ contains natural enzymes — particularly ficin — along with high sugar content that feeds soil biology and encourages abundant fruiting. It is prized in KNF for its ability to soften the transition to the reproductive stage and promote sweet, full-flavored yields.
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Apple
Apple FFJ is a well-balanced, broadly useful ferment loaded with natural sugars, malic acid, and trace minerals that support overall plant metabolism. It works beautifully across all fruiting stages, making it one of the most versatile FFJs a grower can keep on hand.
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Pear
Pear FFJ offers a gentle, high-sugar input with notable levels of fructose and potassium that encourage cell expansion and fruit sizing. It's especially effective in the mid-to-late fruiting stage when crops need sustained energy to develop full, heavy yields.
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Plum
Plum FFJ is packed with organic acids and natural sugars that invigorate microbial communities and stimulate the plant's fruiting hormones. Its high potassium content makes it a go-to application when growers want to deepen flavor and improve the keeping quality of their harvest.
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Cherry
Cherry FFJ is a potent, sugar-dense ferment rich in melatonin and anthocyanins that support healthy plant rhythms and strong color development in fruit. It's particularly effective for crops where vibrant pigmentation and sweetness are the target outcome.
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Strawberry
Strawberry FFJ is a light, enzyme-rich ferment with natural sugars and ellagic acid that stimulates prolific flowering and encourages an abundance of small, flavorful fruit. It pairs especially well with FPJ during the transition stage to push plants enthusiastically into their reproductive phase.
Raspberry
Raspberry FFJ delivers a concentrated blend of natural sugars, organic acids, and antioxidants that fire up soil biology and support vigorous fruit development. Like strawberry FFJ, it excels at promoting abundant yields with heightened sweetness and aromatic intensity.