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Cocoa Shells: Bulk Cocoa Bean Shells for Mulch, Tea, Fibre and Biomass

Cocoa shells are the thin, roasted husks that are removed from cocoa beans before the beans are ground. They make up 10 to 17% of the bean, smell of chocolate, and are rich in fibre, minerals and theobromine. Today they are used as garden mulch, for cocoa tea and high-fibre foods, and as biomass fuel.

At a glance

Product

Cocoa bean shells (husks, hulls)

HS code

1802 00: cocoa shells, husks, skins and waste

Forms

Whole, crushed or milled, on request

Origins

Cameroon, Nigeria, Ghana, Côte d’Ivoire

Supply

Bulk bags or containers, FOB or CIF

10–17%

Of cocoa bean weight

~50%

Dietary fibre (dry)

0.8–1.7%

Theobromine

15–18 MJ/kg

Energy value (dry)

700,000+ t

Produced worldwide each year

Cocoa shells are the thin, brittle outer skins (the testa, also called hulls or husks) that surround each dried cocoa bean. They are separated from the cocoa nibs after roasting, in a step called winnowing, and make up about 10 to 17% of the bean’s weight. They smell of chocolate, are rich in fibre, minerals and theobromine, and are sold as a by-product under HS code 1802.

Shells are not the same as the cocoa pod husk. The pod husk is the thick outer wall of the fruit, about three-quarters of a fresh pod’s weight, and it stays on the farm. The bean shell is the papery layer around each individual bean and is collected at the processing plant, which is why it is clean, dry and already roasted.

With more than 700,000 tonnes produced each year, cocoa shells have moved from waste to a traded raw material: landscapers use them as a fragrant mulch, food and drink brands use them for cocoa tea and high-fibre ingredients, and energy and feed buyers use them as biomass and, in limited amounts, as feed. Each use has its own quality and safety requirements, set out below.

Detailed cross-section diagram of a cocoa pod showing: outer husk/exocarp, inner pod wall, white mucilage pulp, individual cocoa beans arranged in rows, and the central placenta | Radad International

Compare

Cocoa Shell vs Cocoa Pod Husk vs Cocoa Nibs

Attribute

Cocoa bean shell

Cocoa pod husk

Cocoa nibs

What it is

Thin skin (testa) around each bean

Thick outer wall of the cocoa fruit

Kernel of the bean, inside the shell

Where it is separated

Processing plant, by winnowing after roasting

On the farm, when pods are opened

Processing plant, after winnowing

Share of material

10 to 17% of bean weight

About 75% of fresh pod weight

About 83 to 90% of bean weight

Fat content

Low, about 1.5 to 12%

Very low

High, about half the nib

Main uses

Mulch, tea, fibre, biomass, extraction, limited feed

Farm compost, potash, local feed

Cocoa mass, chocolate, snacking

HS code

1802 00

Rarely traded

1801 00

Composition and specifications

Cocoa Shell Composition and Specifications

Composition per 100 g

Component

Typical range

Energy

341 to 374 kcal

Dietary fibre (dry basis)

20 to 66 g, typically about 50 g

Protein

10.3 to 27.4 g

Carbohydrate

38.3 to 52.6 g

Fat

1.5 to 12.3 g

Minerals and bioactives per 100 g

Component

Typical range

Potassium

2,382 to 3,144 mg

Calcium

661 to 1,419 mg

Phosphorus

484 to 1,698 mg

Magnesium

233 to 551 mg

Theobromine

0.8 to 1.7 g

Caffeine

About 5 to 7 times less than theobromine

Polyphenols

6 to 95 mg GAE per g (dry)

Commercial specification: parameters to agree

Shell grades are defined by end use rather than a single standard. These are the parameters to fix in your contract; we confirm the values achievable for each lot before shipment.

Parameter

Why buyers specify it

Form and particle size

Whole shells for mulch; crushed or milled for tea, fibre, feed and fuel

Moisture

Controls mould growth in transit and storage; critical for container shipments

Foreign matter and nib content

Stones, dust and residual nibs; low nib content keeps fat down for mulch

Theobromine

Required for feed formulation and for extraction value

Cadmium and lead

Shells hold more heavy metals than nibs; essential for food and feed use

Mycotoxins (ochratoxin A, aflatoxins)

Mould toxins concentrate in the shell; required for food and feed grades

Microbiology (Salmonella, yeasts, moulds)

Required for tea and food ingredients; may need heat or steam treatment

Cadmium

Shells contain more cadmium than nibs. For comparison, EU Regulation 2023/915 caps cocoa powder at 0.60 mg/kg and dark chocolate (50% or more cocoa solids) at 0.80 mg/kg. Food buyers should test every lot.

PAHs

Beans dried over open fires pick up smoke PAHs (such as benzo[a]pyrene), which sit mostly in the shell. Sun-dried origins give cleaner shells for food use.

Theobromine

At 0.8 to 1.7%, theobromine is the shell’s main limiting factor: it gives value for extraction but restricts use in animal feed and makes shell mulch toxic to dogs.

Traceability (EUDR)

Cocoa shells under HS 1802 fall within the EU Deforestation Regulation. It applies from 30 December 2026 for large operators and 30 June 2027 for small operators, with geolocation data required for EU imports.

From bean to shell

How Cocoa Shells Are Produced

Shells are a co-product of cocoa processing. Their quality is set long before winnowing: how the beans were fermented and dried decides their aroma, moisture, mould load and contaminant levels.

01

Ferment and dry the beans

Beans are fermented in their pulp, then dried, ideally in the sun. Fire-drying leaves smoke residues (PAHs) concentrated in the shell.

02

Clean and sort

Stones, dust, flat and mouldy beans are removed before roasting, which keeps foreign matter and mould toxins out of the shells.

03

Roast

Roasting loosens the shell from the kernel, develops the chocolate aroma the shells carry, and reduces moisture and microbial load.

04

Crack and winnow

Beans are cracked and a controlled air stream blows the light shell away from the heavier nibs. This is where the shells are collected.

05

Screen and process

Shells are sieved to remove dust and residual nibs, then kept whole or crushed and milled to the size each use needs. Food grades can be steam-treated.

06

Pack and ship

Shells are bagged or loaded in bulk, kept dry, and shipped with an analysis certificate and the documents your market requires.

Applications

Uses of Cocoa Shells

Garden mulch

Whole shells make a dark, fine-textured mulch that smells of chocolate, holds moisture and suppresses weeds as it breaks down. Spread 5 to 7 cm deep. Not for gardens used by dogs.

Cocoa shell tea

Crushed shells brew a caffeine-light, chocolate-scented infusion. Steep 1 to 2 tablespoons in 250 ml of hot water for 5 to 10 minutes. Requires food-grade, microbiologically tested shells.

Fibre and cocoa flour

Milled shells add dietary fibre and cocoa colour to bakery, cereals and snacks, typically replacing 5 to 30% of wheat flour. Food grade only, with heavy-metal and mycotoxin testing.

Biomass and biochar

At about 15 to 18 MJ/kg (dry), shells fuel boilers directly or as pellets, and can be converted to biochar or activated carbon.

Theobromine extraction

With 0.8 to 1.7% theobromine, plus polyphenols, shells are a raw material for extracts used in food, nutraceutical and pharmaceutical products.

Animal feed (limited)

Shells add fibre and protein to ruminant feed, but EU theobromine limits cap inclusion at roughly 2.5% for most livestock and far less for pigs, horses and pets.

Compost and soil

Rich in potassium and organic matter, shells break down into a useful compost and potting-mix ingredient.

Safety and handling

Cocoa Shell Safety: Pets, Feed Limits and Storage

Cocoa shells are a natural product, but their theobromine content means they must be used with care around animals, and like any dry plant material they must be kept dry to stay mould-free.

Important

Cocoa shell mulch is toxic to dogs

Dogs metabolise theobromine slowly. Veterinary toxicology (ASPCA) puts mild signs at around 20 mg theobromine per kg of body weight, severe signs at 40 to 50 mg/kg and seizures at about 60 mg/kg. At typical shell levels, a 10 kg dog could show mild signs after eating about 17 g of shells.

Signs (vomiting, restlessness, rapid heartbeat, tremors) usually appear 6 to 12 hours after eating. Do not use shell mulch where dogs can reach it, and label retail mulch accordingly.

EU theobromine limits in feed

Animal group

Max theobromine in feed

Approx. shell inclusion

Most livestock

300 mg/kg

About 2.5%

Pigs

200 mg/kg

About 1.7%

Dogs, horses, rabbits

50 mg/kg

About 0.4%

Limits from EU Directive 2002/32/EC on undesirable substances in animal feed. Inclusion rates assume about 1.2% theobromine in the shell; calculate from the analysed value of each lot.

Keep dry

Store under cover on pallets, off the floor, in a cool, ventilated place. Damp shells mould quickly; keep moisture low during loading and use container desiccants for sea freight.

Dust and handling

Milled shells are dusty. Use dust extraction and masks when tipping bulk bags, and keep away from ignition sources, as with any fine organic dust.

Pests and odours

The chocolate aroma attracts insects and rodents. Keep bags sealed, store away from strong odours, and use stock in rotation.

How to order

Ordering Cocoa Shells in Bulk

Shells are a bulky, low-density product, so freight is a large part of the landed cost. Quotes are prepared per order, based on form, volume, destination and the tests you need.

Forms

Whole roasted shells, crushed, or milled to your particle size.

Packing

Woven PP bags, jumbo bags or bulk in container, agreed per order.

Volumes

Most buyers order by the 40-foot container; smaller lots usually cost more per tonne.

Documents

Certificate of analysis, certificate of origin, phytosanitary certificate and EUDR data where required.

1

Tell us your use

Mulch, tea, fibre, feed, fuel or extraction: this decides the grade and tests.

2

Agree the specification

Form, moisture, contaminant limits, packing, volume, destination and Incoterm.

3

Confirm and ship

We confirm price and lead time, then load and ship with the agreed documents.

Get a quote

Buy cocoa shells in bulk

Send your intended use, form, volume and destination port. We reply with pricing and lead time.

Prefer to call?

+971 52 250 1039

FAQs

Cocoa Shells: Frequently Asked Questions

What is the difference between cocoa shells and cocoa husks?

In trade, “cocoa husks” usually means the same thing as cocoa bean shells: the thin skin removed from each bean. The cocoa pod husk is different: it is the thick outer wall of the fruit, discarded on the farm.

What is the HS code for cocoa shells?

HS 1802 00: “cocoa shells, husks, skins and other cocoa waste”. National tariff lines add further digits, so confirm the full code with your customs broker.

Are cocoa shells safe to eat?

Food-grade shells that have been cleaned, heat-treated and tested for heavy metals, mycotoxins and microbes are used in teas and fibre ingredients. Shells sold as mulch or for fuel are not intended for food.

Is cocoa shell mulch safe for dogs?

No. Shells contain 0.8 to 1.7% theobromine, which is toxic to dogs. Use shell mulch only where dogs cannot reach it.

Does cocoa shell tea contain caffeine?

A little. Shells contain mainly theobromine, a milder stimulant, with about 5 to 7 times less caffeine. Most people find the infusion gentler than coffee or black tea.

How long does cocoa shell mulch last?

Shell mulch breaks down gradually and is usually topped up once a year. Its chocolate smell fades within a few weeks of spreading.

Can cocoa shells be used as animal feed?

Only in small amounts. EU rules cap theobromine at 300 mg/kg in most livestock feed, about 2.5% shell inclusion, and much lower for pigs, horses and pets.

What is the minimum order?

Most shell buyers order by the 40-foot container. Smaller quantities are possible but usually cost more per tonne. Contact us with your volume and destination.

Keep reading

Related Products and Guides

Cocoa Shells Guide

Our in-depth guide to cocoa bean shells and husks: uses, market value and the HS 1802 code.

Read the Guide

Raw Cocoa Nibs

The kernel left after the shell is removed, for snacking, baking and chocolate.

View Cocoa Nibs

Cocoa Mass (Cocoa Liquor)

Ground cocoa nibs in blocks: the 100% cocoa base for chocolate makers.

View Cocoa Mass