Product 02 · Liquid fraction
Refined wood vinegar
Traded worldwide as pyroligneous acid, wood acid, liquid smoke or mokusaku. Ours is decanted to strip the tar fraction, then run through seven filtration stages and delivered at pH 2.4–2.6 — clean enough to apply to soil and plants without the phytotoxicity that gives this product its mixed reputation.
Wood vinegarPyroligneous acidWood acidLiquid smokeMokusaku · 木酢液Ácido piroleñosoExtrato pirolenhoso
How it is refined
01Condensate captureSmoke from carbonisation is drawn through long metal condensing pipes and captured as liquid. Nothing is added and nothing is cut — it is the co-product of charcoal production from certified eucalyptus.
02Natural settling, three to six monthsThe raw liquid rests in tanks for months rather than days. Time is what separates the heavy fraction properly; rushing this stage is why cheap wood vinegar still carries tar.
03Extended decantationAn enhanced decantation stage extracts the separated tar fraction — the contaminant responsible for phytotoxic effects on roots and foliage — and diverts it to our wood tar stream.
04Seven-stage filtrationSuccessive filtration stages remove suspended solids and residual heavy fractions, down to the particle sizes that would otherwise settle in tanks and block application equipment.
05pH adjustment to 2.4–2.6Premium grade is brought into a controlled pH window, which makes it effective as a soil pH corrector in alkaline and calcareous soils on top of its other functions.
06Batch testing and fillingEach batch is tested and released before filling into jerrycans, drums, IBC totes or flexitank, with the certificate of analysis issued against that batch.
Applications
Soil amendmentSupports microbial activity, root development and nutrient uptake in the root zone.
pH correctionAt pH 2.4–2.6 it lowers pH in alkaline and calcareous soils as part of a programme.
Biostimulant formulationsBase material for biostimulant and soil-amendment lines in organic programmes.
Compost acceleratorSpeeds decomposition and manages odour in composting and manure operations.
Livestock housingOdour and ammonia management in barns, poultry houses and bedding.
Formulation feedstockInput for blenders producing liquid soil and foliar lines under their own brand.
Application and dilution guidance
Soil drench1:300–1:500
Foliar programme1:500–1:1000
Compost accelerator1:100 on the pile
Barn and litter odour management1:100–1:200
Biochar charging1:20 by volume
Ranges are typical starting points; dilution guidance for your use is issued with the order.
Typical specification
ParameterTypical valueMethod / note
pH2.4–2.6Controlled range, verified per batch
Tar fractionremovedExtended decantation stage
Filtration7 stagesSuspended solids and heavy residues
Appearanceclear amberVisual, no sediment on standing
Densityreported per batchOn the certificate of analysis
Feedstockcertified eucalyptusParaguay and Brazil, documented origin
Storagesealed, shadedStable in original packaging
Dilutionper applicationGuidance issued with the order
Values are typical for standard production and are confirmed per batch on the certificate of analysis. Specifications can be adjusted against a firm volume commitment — send us your target and we will confirm feasibility before quoting.
Buyer questions
How is this different from ordinary wood vinegar?
Two process steps. An extended decantation stage extracts the tar fraction, and seven filtration stages remove what remains. Most material on the market skips or shortens both, which is why buyers report burnt roots, blocked nozzles and sediment in storage. Ours is filtered to be applied, not just to be sold.
Why is the pH held at 2.4 to 2.6?
It is low enough to function as a soil pH corrector in alkaline and calcareous soils, which adds a second use to the same product, and it is a controlled window rather than whatever the batch happened to produce — so your dilution rates stay valid from shipment to shipment.
Is it the same as liquid smoke or pyroligneous acid?
They are names for the same family of product: wood vinegar, pyroligneous acid, wood acid, liquid smoke and mokusaku all describe the aqueous condensate of biomass pyrolysis. What differs between suppliers is refinement — and that is the part that decides whether it helps a crop or harms it.
Can you meet EU or organic-input requirements?
Requirements differ sharply by destination: EU classification and labelling rules, organic-input review in North America, import registration across much of Asia. Tell us the destination and the certification you need at enquiry stage and we will prepare the batch data set for that market before shipping.