Buying Feed-Grade Biochar for Animal Feed and Livestock Bedding

Biochar has two distinct roles in livestock production, each with its own specification, certification burden and price point. Feed-grade biochar goes into the digestive tract of the animal; in the EU it is placed on the market as a feed material (Catalogue entry 7.13.1 "Vegetal carbon; [charcoal]", Regulation (EU) No 68/2013), not as an authorised feed additive. Bedding-grade biochar goes on the barn floor to control ammonia and moisture. Farms often use both, and they buy from the same producer, but the procurement process is not the same.

What feed-grade and bedding biochar are used for

Feed supplement

In published trials, biochar is typically fed at about 0.2-1% of ration dry matter by weight for pigs, poultry and fish, and up to about 2% for cattle. Results depend on the biochar, the dose and the diet, and many trials show no significant effect:

• Poultry. Trials report effects on feed conversion, litter dryness and ammonia. Used by some laying-hen, broiler and turkey producers in Europe and Asia.
• Ruminants (cattle, sheep, goats). Trials report better nutrient digestibility at low inclusion (around 1% of dry matter). Effects on methane are inconsistent: early tropical trials reported reductions of around 20%, but a 2024 meta-analysis found only about a 5% cut in daily methane, and recent dairy trials in Switzerland, Austria and Bavaria found no effect on methane or milk yield.
• Pigs. Growth and feed-conversion results are mixed: some trials (e.g. Korea, 0.3-0.6% bamboo charcoal) report better gain and lower manure ammonia and odour, others show no significant change.
• Aquaculture. Feed supplements in fish and shrimp farming are being trialled for growth and water quality.

Bedding additive

Bedding-grade biochar is blended into straw, sawdust, sand or deep-litter systems:

• Poultry litter. Absorbs moisture and ammonia and extends litter life; trials report fewer foot-pad lesions. Improves litter value as fertiliser after the production cycle.
• Cattle housing. Cubicle beds, loose housing and calf pens. Reduces slurry ammonia and improves stall dryness.
• Pig housing. Reduces ammonia in slatted and deep-litter barns, improves air quality and worker comfort.
• Horse stables. Odour control and moisture management.
• Equine and pet markets. Specialty bedding, odour-absorbing litters.

If you are new to biochar in livestock

The most common first purchase is bedding-grade biochar for poultry or cattle. It is cheaper and users often notice less ammonia odour and a drier floor within days. Because the manure ends up on fields, bedding biochar still needs a soil-grade certificate. Feed-grade use is a larger decision because it goes into the food chain and requires a certified, traceable supply.

Examples across geographies

• Germany, Austria, Switzerland. The most established market: most biochar used in agriculture there passes through animal husbandry as a feed material, bedding or slurry treatment. EBC-FeedPlus (and the former EBC-Feed) is the benchmark certificate.
• France, Netherlands, Denmark. Large poultry and pig producers trial and buy biochar at scale. Feed mills and integrators expect suppliers to hold GMP+ or an equivalent recognised scheme (QS in Germany, OQUALIM in France).
• United Kingdom and Ireland. Growing dairy and beef market, especially in organic and regenerative operations.
• United States and Canada. In the US, biochar has no FDA approval, GRAS status or AAFCO ingredient definition for animal feed (AAFCO dropped charcoal from its official feed terms in 2010). Since the FDA-AAFCO agreement expired in October 2024, new ingredients go through FDA's Animal Food Ingredient Consultation, a food additive petition or a GRAS notice. Biochar is therefore sold mainly as a bedding and litter amendment; check with your state feed control official, and in Canada with the CFIA.
• Australia and New Zealand. Feed and bedding use is reported at farm level; New Zealand has active research on methane from grazing cattle.
• Japan and South Korea. Charcoal and bamboo charcoal have long been used in livestock feed, and Korean trials report better pig performance and lower manure odour.
• Southeast Asia (Vietnam, Thailand, Indonesia). Locally produced biochar from coconut shell, rice husk or bamboo is used at small scale in poultry and aquaculture.
• Sub-Saharan Africa. Small-scale poultry and dairy operations use locally produced biochar. Growing commercial interest, especially in Kenya, Tanzania and South Africa.
• Brazil and Argentina. Early stage: feedlot methane work in the region has focused on other additives, and biochar is not yet established in feed.

Lab test parameters - feed grade versus bedding grade

Feed-grade biochar has the tightest contamination limits of any biochar category, because the product enters the food chain. Bedding-grade biochar has looser limits but still needs to be clean enough that the resulting manure or litter can be used as fertiliser.

Parameter	Why it matters	Feed grade target	Bedding grade target	Red flag or avoid	Priority
PAH16 (EPA)	Carcinogenic residues; EBC limits	Below 6 mg/kg, plus below 1 mg/kg for the 8 EFSA PAHs (EBC-FeedPlus)	Below 6 mg/kg (EBC-Agro / AgroOrganic)	Above feed limit for feed use	Critical
Dioxins and dioxin-like PCBs	Strictest regulatory item in feed chain	PCDD/F 0.75 and PCDD/F + dioxin-like PCBs 1.25 ng WHO-TEQ/kg at 12% moisture (Directive 2002/32/EC; EBC-FeedPlus)	As feed grade if animals can ingest the bedding; otherwise EBC-Agro limits (PCDD/F 20 ng I-TEQ/kg; PCBs 0.2 mg/kg)	Any exceedance	Critical (feed)
Heavy metals (As, Cd, Pb, Hg)	Accumulate in animal tissue and manure	As 2, Pb 10, Cd 1, Hg 0.1 mg/kg at 12% moisture (Directive 2002/32/EC); EBC-FeedPlus is stricter for Pb and Cd	Within EBC-Agro / AgroOrganic limits	Any exceedance	Critical
Microbial contamination (Salmonella, E. coli, Listeria, Clostridium)	Food safety	Salmonella absent in 25 g; Enterobacteriaceae / E. coli below agreed cfu/g	Absent in 25 g (desirable)	Any positive	Critical (feed)
H/Corg molar ratio	Pyrolysis completeness	Below 0.4 (EBC-FeedPlus)	Below 0.7	Above the limit	Critical
Fixed carbon (% dry)	Adsorption capacity	Above 70%	Above 60%	Below 50%	Important
Ash (% dry)	High ash dilutes activity	Below 20%	Below 30%	Above 35%	Important
Moisture (% wet)	Freight, flowability, microbial risk	Below 25%	Below 40%	Above 50%	Important
Particle size distribution	Flowability in feed mixer; comfort as bedding	0.5-3 mm (feed mill compatible)	1-8 mm (bedding compatible)	Excessive fines, respirable dust	Critical
pH	Rumen and gut compatibility	7 to 10	7 to 10	Above 11	Important
Volatile matter (% dry)	Indicator of pyrolysis quality	Below 20%	Below 25%	Above 30%	Important
BET surface area (m2/g)	Adsorption capacity (ammonia, odours)	Above 200	Above 100	Below 50	Important
Aflatoxins and mycotoxins (if cereal feedstock)	Feedstock-borne risk	Absent or below EU feed limits	Absent or below limits	Any detection in feed grade	Critical (feed)

If you are new to biochar in livestock

The feed-grade decision is a food-safety decision, not a price decision. Ask for the full contaminants report plus a valid EBC-FeedPlus (or a still-valid EBC-Feed) or regional feed certification before the first order. For bedding grade, use EBC-FeedPlus (preferred, because animals ingest bedding and the manure goes to soil) or at least EBC-Agro / EBC-AgroOrganic; EBC-Basic and WBC-Material must not be used in agriculture.

Certifications and standards

Feed-grade biochar in the EU is regulated as a feed material under Regulation (EU) 68/2013 and Regulation (EC) 767/2009. It is normally sold under Catalogue entry 7.13.1 "Vegetal carbon; [charcoal]", which covers carbonised plant material only. Bedding-grade biochar is less regulated but must not contaminate the resulting manure.

The two biochar certification schemes are the European Biochar Certificate (EBC) and the World Biochar Certificate (WBC), both owned by Carbon Standards International (CSI) in Switzerland and audited by independent certification bodies. EBC (version 10.5, September 2025) has six classes: EBC-FeedPlus, EBC-AgroOrganic, EBC-Agro, EBC-Urban, EBC-Materials and EBC-Basic. Producers who held the former EBC-Feed class on 1 August 2025 can still certify batches under it until 31 December 2026. WBC (version 1.1) has three classes - WBC-Premium, WBC-Agro and WBC-Material - and applies to biochar certified and traded outside the EU and EFTA; biochar sold into the EU or EFTA must carry EBC.

For animal feed, EBC-FeedPlus (and, for existing producers until the end of 2026, EBC-Feed) is the directly relevant class. WBC has no feed class: WBC-Premium may be used in feed only if the producer is also registered or licensed as a feed producer, and every lot must meet the destination country's feed limits. For bedding, use EBC-FeedPlus or at least EBC-Agro / EBC-AgroOrganic (WBC-Agro or WBC-Premium outside the EU and EFTA).

• EBC-FeedPlus (or the former EBC-Feed). The European Biochar Certificate grade for animal feed. Tight limits on PAH, dioxins, PCBs and heavy metals, with every batch tested against EU feed limits. Producers who held EBC-Feed on 1 August 2025 can certify batches under it until 31 December 2026; from 2027 FeedPlus is the only EBC feed class.
• WBC-Premium. The top WBC class. Not equivalent to EBC-FeedPlus: its contaminant limits are far above EU feed limits, and it may be used in feed only if the producer is also registered or licensed as a feed producer, with lot-specific CoAs meeting the destination country's feed limits.
• EU Catalogue of feed materials. Feed-grade biochar is normally sold under Catalogue entry 7.13.1 "Vegetal carbon; [charcoal]" (Regulation (EU) 68/2013), defined as a product of carbonising organic plant material, so it must be made from plant feedstock. Using the Catalogue is voluntary, but that name may only be used for products that meet the entry. Feed materials need no pre-market authorisation; a feed material not in the Catalogue must be notified to the industry-run EU Feed Materials Register (Art. 24(6), Regulation (EC) 767/2009).
• GMP+ International. Voluntary feed-safety management system standard. Commonly required by feed mills and integrators (QS in Germany and OQUALIM in France are accepted equivalents in those markets).
• FAMI-QS. Feed-additives and pre-mixtures quality-assurance standard, expected of specialty feed ingredient and additive manufacturers, and requested by some feed mills.
• FDA (United States). No FDA approval, GRAS status or AAFCO definition exists for biochar or charcoal as a feed ingredient. Under USDA organic rules, activated charcoal from plant sources is allowed only as a therapeutic treatment for livestock. Importers of animal food must run a Foreign Supplier Verification Program (21 CFR Part 1, Subpart L).
• Feed regulators outside the EU and US. Japan: MAFF under the Feed Safety Act. South Korea: MAFRA under the Control of Livestock and Fish Feed Act. Australia: state and territory stock-feed laws, plus the APVMA for additives and supplements. New Zealand: MPI under the ACVM Act 1997. India has no central feed regulator for biochar (FSSAI's remit excludes animal feed; BIS feed standards are voluntary). Check current status with your supplier and the local authority.
• Organic certifications. In EU organic production, biochar is authorised as a soil conditioner (Regulation (EU) 2021/1165, Annex II), but charcoal is not on the Annex III list of feed materials and additives for organic livestock. Under USDA NOP, activated charcoal from plant sources is allowed only as a therapeutic treatment. Confirm status with your certifier before using biochar in organic feed.
• EBC-FeedPlus or EBC-Agro / EBC-AgroOrganic (WBC-Agro or WBC-Premium outside the EU and EFTA) for bedding-grade applications.
• HACCP-based procedures (legally required for EU feed businesses); ISO 22000 or FSSC 22000 optional.
• REACH. Registration is not required for the quantity of biochar used in animal nutrition (REACH Art. 2(5)(b)); biochar sold for other uses, such as bedding or soil, needs the importer's or producer's REACH registration, and a safety data sheet is still needed if the product is classified as hazardous.
• EUDR. Wood charcoal, including wood-based biochar and biocarbon (HS 4402), is covered by the EU Deforestation Regulation from 30 December 2026 for large and medium companies and from 30 June 2027 for micro and small companies. The company placing it on the EU market files a due-diligence statement with the geolocation of the plots where the wood was harvested. Activated carbon (HS 3802) is not covered.

Required versus optional: legally required for EU feed sales are feed-business registration of the producer and the importer (Regulation (EC) 183/2005), HACCP-based procedures, compliance with the Directive 2002/32/EC limits and correct labelling under Regulation (EC) 767/2009. Commercially expected are EBC-FeedPlus (or EBC-Feed for existing producers until the end of 2026) and a feed-safety certificate the buyer accepts (e.g. GMP+, QS, FAMI-QS). Bedding grade needs a soil-grade certificate (EBC-FeedPlus, EBC-Agro or EBC-AgroOrganic) and a CoA.

Shipping and handling

Feed-grade biochar has to be handled under feed-mill hygiene standards and separated from any industrial or contaminated product. Bedding grade is more forgiving but still needs to stay dry and dust-controlled.

• FIBC big bags, 500 kg (feed grade). Dedicated feed-use bags, ideally with GMP+ certification markings. Never in containers that previously carried industrial product.
• 25 kg sacks (feed grade). For smaller orders, pre-mix operations and retail farm stores.
• FIBC big bags, 1000 kg (bedding grade). Typical for cattle and pig operations. Often co-delivered with straw or sawdust.
• Bulk blown delivery to silos (large operations). For very large integrated producers, but requires densified or pelleted product to flow properly.
• Pelleted or granulated formats. Preferred for feed-mill integration because free-flowing through standard mixers and augers without segregation.

Points to negotiate explicitly:

• Feed-mill compatibility. Particle size must match your pellet mill or mixer. Ask for dustiness data (EN 15051), because feed-mill workers are the exposure group.
• Traceability. Lot-level traceability is mandatory in feed supply. Require batch numbers on bags, retention of batch samples by the supplier for 12 months, and chain-of-custody documentation.
• Segregation from industrial product. If the supplier produces both industrial and feed-grade biochar, feed production must occur on separated equipment with validated cleaning procedures. Request the supplier's HACCP plan.
• Dangerous-goods classification. At sea, biochar is dangerous goods: under IMDG Code Amendment 42-24, mandatory since 1 January 2026, it ships as UN 1361 "Carbon, animal or vegetable origin", Class 4.2, and passing a self-heating (N.4) test no longer exempts it. Special provision 978 requires the material to be weathered under cover for at least 14 days after production (or steamed, cooled and packed under inert gas), packed at no more than 40 °C and loaded with at least 30 cm headspace in the container; the dangerous-goods declaration states the production date, packing date and packing temperature. Loose bulk in containers is not allowed, so use UN-approved packaging: bags of up to 50 kg or, for packing group III only, UN-certified big bags that are sift-proof and water-resistant. Shipping lines treat biochar as charcoal and add their own conditions and a dangerous-goods surcharge, so book it as UN 1361 and get the booking approved before you pack. By road and rail (ADR/RID) it is also UN 1361, Class 4.2.
• Storage at farm. Covered, dry and separate from chemicals, pesticides and bedding-grade product if the farm also uses bedding biochar.

Import and customs clearance

• HS codes. Wood-based biochar and biocarbon are normally classified under HS heading 4402, "Wood charcoal (including shell or nut charcoal), whether or not agglomerated": 4402.10 for bamboo, 4402.20 for shell or nut charcoal such as coconut or palm-kernel shell, and 4402.90 for other wood charcoal. EU import duty on 4402.90 is nil. Activated carbon falls under 3802.10. Biochar from non-wood feedstocks such as manure, sewage sludge or straw may not fit heading 4402: US Customs, for example, classified a poultry-litter biochar under 3802.90. For unusual feedstocks or blends, ask your customs broker or apply for a Binding Tariff Information decision. A premix containing biochar may fall under 2309 (preparations of a kind used in animal feeding).
• Importer registration and border controls. In the EU and UK, the importer must be a registered feed business operator (Regulation (EC) 183/2005). Biochar is not on the EU list of feed subject to increased border checks (Regulation (EU) 2019/1793), so a CHED-D is not normally required, but random official controls still apply. In the US there is no federal feed import licence: the importer needs a Foreign Supplier Verification Program, the foreign plant must be FDA-registered, prior notice is required, and most states require a commercial-feed licence or product registration.
• Health and veterinary certificates. Some jurisdictions require an origin health certificate signed by the competent authority of the producer country.
• REACH and EUDR. See the notes under Certifications.
• Document stack. Commercial invoice, packing list, bill of lading, certificate of origin, feed-safety CoA per lot (PAH, dioxins, heavy metals, microbiology), EBC-FeedPlus (or EBC-Feed) and GMP+ or FAMI-QS certificates, feed-business registration number of the importer, HACCP traceability records, SDS, health certificate where required, EUDR due-diligence statement reference (wood-based product), dangerous-goods declaration (UN 1361) with production date, packing date, packing temperature and weathering record.

Economics - feed efficiency and health

Feed-grade biochar costs more per tonne than bedding grade because of certification, cleaner feedstock and stricter production hygiene, but it sits in the feed ration at a very low inclusion rate (0.2-1% of dry matter; up to about 2% for cattle), so cost per tonne of feed is modest: at EUR 1,000-3,000 per tonne of biochar, 0.2-1% inclusion adds roughly EUR 2-30 per tonne of feed.

Indicative prices in EUR per tonne unless stated otherwise, excluding VAT, as of October 2026, based on published price lists and market reports from 2024-2026. Actual quotes vary with grade, certification, particle size, moisture, packaging, volume and delivery terms.

• EBC feed-grade certified biochar, EU. EUR 1,000 to 3,000 per tonne (big bags at the low end; 10-25 kg sacks EUR 2,500 to 3,000).
• Bedding-grade biochar, EU. Usually priced close to bulk soil grade, indicatively EUR 400 to 800 per tonne.
• Locally produced feed biochar, Global South. Indicatively EUR 400 to 1,000 per tonne.
• Locally produced bedding biochar, Global South. EUR 80 to 400 per tonne.

Where the farm-gate economics close:

• Feed conversion. Published results are mixed: ruminant meta-analyses show better digestibility and feed conversion at low inclusion but no effect on daily gain, and several pig and dairy trials show no significant change. Treat any FCR gain as something to confirm in your own trial, and compare it with the inclusion cost above.
• Animal health records. Biochar is a feed material, not a veterinary medicine, and must not be presented as preventing or treating disease. Track vet costs and treatments in your own trial alongside performance.
• Ammonia reduction in housing. Lower ammonia improves animal welfare, and trials report fewer foot-pad lesions in broilers. Better air quality also helps meet tightening animal-welfare standards.
• Litter and manure value. Biochar-treated poultry litter is drier, more manageable and more valuable as a fertiliser or compost feedstock. Cattle slurry containing biochar emits less ammonia in storage and shows improved nutrient availability when spread.
• Carbon and methane. Verra VM0041 (v2.0) can credit enteric-methane reductions from approved feed ingredients with proven efficacy. We are not aware of registered biochar projects under it, and in-vivo results are inconsistent, so treat methane credits as speculative.
• Animal-welfare premium markets. Higher-tier retail and restaurant supply chains increasingly pay a premium for documented welfare-certified product. Biochar can be part of the welfare and housing measures documented for those schemes.

If you are new to biochar in livestock

Run a 12-week side-by-side trial on one barn or one batch, measure FCR, mortality and vet cost, and compare against your control. Farm-level economics are noisy; the trial is the only way to know your herd or flock response. Once the number is yours, the purchasing case writes itself.

Questions to ask a supplier on a first call

1. Is the product EBC-FeedPlus (or EBC-Feed) certified - or, outside the EU, WBC-Premium plus a feed-producer registration - and can you share the most recent audit?
2. Can you share full feed-safety contaminants reports (PAH, dioxins, heavy metals, microbiology) from recent lots?
3. Is your production GMP+ or FAMI-QS certified? Can you share the current certificates?
4. Do you market the product as EU feed material 7.13.1 "Vegetal carbon; [charcoal]", and what are your and your importer's feed-business registration numbers?
5. What is the feedstock, and is it EUDR-compliant for wood-based product?
6. What particle size distribution is available, and will it flow through my feed mixer and pellet mill?
7. Do you have references from poultry, dairy, pig or aquaculture customers in my region?
8. What is your minimum order quantity, lead time and current production capacity?
9. Can you segregate feed-grade from bedding-grade or industrial product in production and shipping?
10. What commercial terms do you offer - EXW, FCA, CIP, indexation?

Next steps

BiocharLink connects feed mills, integrated poultry and pig producers, dairy operations, feedlots and aquaculture farms with certified feed-grade and bedding-grade biochar suppliers. Start a buyer questionnaire and we will match you with producers who carry the certifications and consistency your supply chain requires.

Our team includes seasoned application experts with poultry, pig, dairy, ruminant and aquaculture experience. If you would like to discuss inclusion rates, on-farm trials or feed-safety documentation before committing to a purchase, reach out via our contact form and we will come back to you.

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