🌿 Value Addition, Markets and Costing

This module opens with a conclusion that everything before it has been building toward. Capacity to grow cassava is not the scarce resource in most of this value chain. Capacity to process it fast, safely and to a consistent standard is.

Three pieces of sourced evidence point the same way.

First, the perishability. Fresh roots begin spoiling within 48 to 72 hours of harvest. Growing more roots than you can move into processing, sale or the pot within that window does not create income. It creates loss.

Second, the loss breakdown. One FAO compendium attributes cassava post-harvest losses as harvesting 13.6 percent, handling 8.5 percent and processing 23.2 percent. Processing is the largest single category. Read that carefully, because it cuts both ways. It is where most is currently lost, which means it is also where the biggest recoverable gain sits. A business that improves its processing loss rate is working on the largest number in the table.

Third, the market-size claim, and this one needs handling carefully. Nigeria alone was estimated to be missing out on a share of a global cassava-processing market estimated at US$180 billion. That is a striking headline. It is also a market-sizing estimate from a single business-press source, and this course marks it as unverified as a precise number.

So what do you take from it? The direction, not the figure. The underlying claim, that industrial demand for cassava-derived starch, flour and ethanol is very large relative to Africa's current processed output, is directionally well supported by programme material on high-quality cassava flour and industrial starch adoption. What is not supported is any particular dollar amount, and you should never build a business plan on a headline number from a newspaper.

This is worth practising as a habit, because you will meet more figures like it. When somebody quotes an enormous market, ask: who produced this estimate, for what purpose, in what year, and does the number describe a market that exists and is being served, or a theoretical total demand nobody has yet supplied? A number describing global processing turnover tells you nothing about whether a buyer in your district will take your gari next month.

Notice also what the US$180 billion figure is about. It is a processing opportunity, not a growing opportunity. Nobody claims Africa is missing out on a US$180 billion market for fresh cassava roots, because fresh roots cannot travel. The value being described sits downstream, in the products that survive transport.

Which gives the strategic point of this whole module. If you are deciding where to spend your next unit of money, effort or attention, the sourced evidence points downstream. Another hectare planted produces roots that must still be moved and processed within days. Improved processing capacity, better drying, a press that turns a week into hours, or simply a reliable transport arrangement, works on the constraint that is actually binding.

That is not a rule for everyone. If you have processing capacity standing idle for lack of roots, then more roots is exactly what you need. The point is to know which constraint you are actually facing, and most growers have never asked the question. Work it out arithmetically: how many tonnes can your processing route absorb per day, how many days a week does it run, and how does that compare to what your land produces at harvest? Whichever side is smaller is your real business size, and money spent on the larger side buys you nothing.

One last honest note about this module. There is a large gap in the evidence behind it. No current African farm-gate-to-processor price series for fresh roots, gari, high-quality cassava flour or starch was retrievable, and no named list of specific industrial buyers with volume requirements in any named African country was retrievable either. This is the single largest gap in the research behind this course. So this module teaches you a costing method and a way of finding buyers. It gives you no prices, because it has none that are current and trustworthy, and inventing them would be worse than useless.

Somebody has to buy what you make. This lesson covers the sourced categories of buyer and, just as importantly, tells you plainly what this course cannot tell you.

Bakeries. High-quality cassava flour is used to substitute wheat flour in bakery products, at up to 25 percent substitution in one cited source. Bakeries are the most accessible industrial buyer for a small processor because there is usually at least one in reach, they buy regularly rather than in single large lots, and the quality conversation is one you can have directly with the baker. Expect them to test in their own product before committing.

Starch buyers. Cassava starch is used across food, paper, textile and other industrial applications. The property they are buying is real: starch makes up 64 to 72 percent of root carbohydrate and its roughly 20 percent amylose and 70 percent amylopectin composition gives it particular clarity, thickening and gelling behaviour. But this course could not retrieve specific industrial end-use volumes or values for Africa, so it cannot tell you how big any of those markets is where you live.

Animal feed processors. This is where the clearest sourced opportunity sits, and it deserves the space.

Africa uses only about 6 percent of its cassava for livestock feed. Latin America uses 32.4 percent. Asia uses over 40 percent, largely for export, plus 2.9 percent domestically.

Compare those. Africa is using roughly a sixth of the share Latin America uses. This is one of the clearest sourced underused-opportunity statistics in the whole course. A large part of cassava's potential feed-market value is, on this evidence, simply not being captured in Africa.

Why does that matter to you practically? Because feed markets take dried chips and they take material that the food market will not, including peels and processing waste streams. A processor already producing gari or flour is already generating peel and waste. If a feed buyer exists nearby, that stream has value instead of being a disposal problem. Note the safety point though: cyanide does not become irrelevant because the customer has four legs. Feed material still needs proper drying, and what is acceptable in feed is a question for the same national authority that governs food.

Ethanol and industrial alcohol. Cassava starch is repeatedly mentioned in the value-chain literature as a feedstock for ethanol. But no specific sourced African ethanol-from-cassava production or market figure was retrievable in the research behind this course. So this course names ethanol as a category and gives you no number. If someone offers you an ethanol contract, that is a specific commercial negotiation, and the figures must come from them and be checked by you.

Institutional buyers deserve a mention even though the reference gives no figures for them. Schools, hospitals, prisons and government feeding programmes buy staple foods in volume on regular schedules. They typically require consistent quality, reliable delivery and paperwork, which is exactly the discipline the last two modules have been teaching. Ask your local government office what is procured locally and on what terms.

Now the honest gap. No named list of specific industrial buyers, with stated volume requirements, in any named African country, was retrievable. Nor was any current price. This course therefore cannot hand you a buyer. What it can do is tell you exactly where to go looking, and the list is short and real.

• Your cooperative or farmers association, which usually knows who is buying and at what terms this season.
• Your state or national ministry of agriculture, and any commodity exchange operating in your country.
• Your extension office, which often knows which processing programmes are active in your district.
• Bakeries and feed millers directly. Walk in and ask what they buy, in what quantity, to what specification, and what would make them switch a share of their purchase to you.

One useful piece of context when judging whether an industrial buyer exists at all in your country. As of the cited source, high-quality cassava flour and industrial starch technology was fully adopted in Nigeria and tested but not yet fully adopted in 13 other countries, including Benin, Cameroon, DR Congo, Ghana, Liberia, Madagascar, Malawi, Rwanda, Sierra Leone, Tanzania, Togo, Uganda and Zambia. If you are in a country in that second group, the industrial market may be emerging rather than established, and your realistic first customers are more likely to be local food markets and bakeries than a large starch plant.

You cannot make everything, and the choice of product decides your equipment, your labour, your customers and your safety burden. Here is how to make it deliberately.

Work through five questions in order.

Question one: what is your deterioration window? Module 10 taught you to test your own varieties. If your variety is at the fragile end, becoming inedible within 24 hours, you need a product whose first step can begin immediately, close to the field. If your variety is durable, standing 7 to 11 days at room temperature, you have options a fragile-variety grower does not, including selling fresh into a town market.

Question two: what does your variety's cyanogenic level demand? A variety destined for full gari-style fermentation and drying can safely be a higher-cyanogen variety than one destined for a route with no fermentation step. If you have bitter, high-cyanogen roots, the fermented routes are the ones with the strongest sourced detoxification chain. If you are producing an unfermented flour or starch, the burden shifts onto variety choice, thorough washing and thorough drying, and testing matters more.

Question three: what capital and skill do you have? Compare honestly. Gari requires a grater, a press or heavy weights, sieves and a frying pan or drum, plus real operator skill at the frying stage, where reported times of 30 minutes to 2 hours vary with batch size, pan temperature and operator skill. Chips require the least equipment, essentially slicing and a drying surface, which is why they are often a first product. Starch and high-quality cassava flour require more equipment, more water, more control of drying, and a buyer who tests to a specification.

Question four: who will buy it, and have you asked them? This is the question most often skipped. A product you can make and nobody nearby buys is not a business. Go and ask before you buy equipment, not after.

Question five: what safety burden does the route carry? This is the question this course insists on. Look at the sourced comparison again. Sun drying alone achieved 30 percent reduction, leaving 30.5 mg per kg. Traditional soaking alone achieved 20 percent, leaving 50.7. Fermentation plus drying achieved 80 percent, leaving 10.2. The full combination of peeling, soaking, fermentation and frying reached about 100 percent, leaving 1.5.

So a chips route, which is the cheapest to enter, is also the route with the weakest sourced single-step reduction. That does not make chips illegitimate. It makes them a route where variety choice, an adequate soak, thorough drying and finished-product testing all carry more weight, and where using a high-cyanogen bitter variety would be the wrong decision.

Understand what that means as a business principle: the cheapest route to enter is often the one that demands the most discipline, because it has the least chemistry working for it.

Now some product-by-product notes to help you decide.

Gari has the most complete sourced detoxification chain, an established mass market, and firm Codex composition standards you can aim at: moisture 12.0 percent maximum, crude fibre 2 percent maximum, ash 2.75 percent maximum and titratable acidity between 0.6 and 1.0 percent as lactic acid. Its risks are the frying skill and the temptation to shorten fermentation.

Fufu suits an operation close to its customers, and its critical discipline is discarding soak water.

Chips are the low-capital entry point, suitable for feed markets and for milling, and they demand the most care because a single step carries the least reduction.

High-quality cassava flour and starch are the industrial routes. The conversion ratio is roughly 5.5 tonnes of fresh roots to 1 tonne of HQCF, about 18 percent by weight, so your root supply requirement is large. The Codex flour standard sets moisture 13 percent maximum, crude fibre 2.0 percent maximum, ash 3.0 percent maximum and particle size at 90 percent passing a 0.60 mm sieve for fine flour or 1.20 mm for coarse.

One final piece of advice. Start with one product and make it consistently before adding a second. Consistency is what industrial and institutional buyers actually purchase. A processor who delivers the same product every month is worth more to a bakery than one who occasionally delivers something better.

This lesson gives you a method, not a price. Nobody can tell you what cassava sells for in your market this week except your market this week, and this course has no current, dated African price for fresh roots, gari, high-quality cassava flour, starch or chips. So here is the arithmetic you use with your own numbers.

The formula is: break-even price per unit equals the annual ownership cost of equipment plus variable costs, divided by units produced.

Step one: list your capital items and work out annual ownership cost.

Capital items for a cassava processing business typically include a grater, a press, a fryer or roasting pan, drying racks or a drying floor, storage containers, sieves and transport. For each, you need two figures: what it cost, and how many years it will work.

That second figure is a problem, and this course will not paper over it. No sourced working-life figure for any specific piece of cassava processing equipment in African conditions was retrievable. So this course gives you no number for it. You must estimate it locally, and the way to do that is to ask two or three people who already own the same equipment how long theirs has lasted, and write down their answers with their names. That is real evidence about your conditions, and it beats any figure a document could print.

Then the arithmetic is simple division. An item that cost a certain amount and is expected to work for five years has an annual ownership cost of that amount divided by five. Do that for each item and add them together. That total is what your equipment costs you per year whether you use it or not.

Step two: list your annual variable costs. These are the costs that rise and fall with how much you process.

• Fresh root purchase, priced per tonne using local, current figures you obtain yourself, with the date written beside them.
• Labour, including your own time at a real rate. This is the item people leave out, and leaving it out makes an unprofitable business look profitable. If you would not do the work for what the business pays, the business is not paying.
• Fuel or energy for frying or drying.
• Packaging.
• Transport to market.

Step three: estimate your units produced. For high-quality cassava flour, the roughly 5.5 tonnes of fresh roots to 1 tonne of finished product ratio is a starting point for that specific product. But check it against your own equipment and process, because deterioration losses and processing losses, which the FAO breakdown puts at 23.2 percent, both eat into the theoretical conversion before a single unit is sold. Measure your own conversion over a few batches, using the batch records from Module 10, and use your measured figure rather than the benchmark.

Step four: divide, and then do the thing that makes the whole exercise worthwhile. Compare your break-even price to the price you can actually get in your own market this week.

There are only three possible outcomes and you should know what each one means.

If the market price is comfortably above your break-even, you have a business, and you now know your margin per unit rather than guessing at it.

If the market price is close to your break-even, you are working for very little, and any bad batch, price fall or equipment failure puts you into loss. Look at which cost line is largest and whether it can be reduced.

If the market price is below your break-even, you are losing money on every unit and making it up in volume, which is not a strategy. That is not a reason to give up. It is information, and it tells you where to look: a cheaper root supply, a lower processing loss rate, a higher-value product, a better-paying buyer, or an honest exit.

One discipline that makes all of this real. Write the date beside every price you record. Prices go stale, and a costing built on last year's root price will mislead you exactly when conditions have changed. Redo the calculation at least once a season.

One worked division, using the only sourced processing cost figure this course has. One programme processed 288 tonnes of fresh roots into high-quality cassava flour over one year for US$17,238. Divide 17,238 by 288 and you get about US$60 per tonne of fresh root processed. That is the shape of the calculation. But the figure itself is unverified as current and specific to one programme's cost structure and year, so copy the method and never the number.

A cassava operation without records is not a business, it is a habit with money moving through it. This lesson gives the minimum record set, and for each one, why it exists. Every one of them follows directly from evidence in earlier modules, not from a general enthusiasm for paperwork.

Record one: time from harvest to start of processing, per batch.

Why: post-harvest deterioration loss is a function of this single number more than almost anything else in the whole course. Deterioration begins the moment the root is detached, scopoletin peaks within 24 hours before you can see anything, and spoiling is visible from 48 to 72 hours in general. If you keep only one record, keep this one.

Record two: fresh root input weight and finished product output weight, per batch.

Why: it gives you your real conversion ratio, which you need for the costing in Lesson 4 and which you cannot get from any benchmark. It also catches process losses early. If your conversion drifts downward over several batches, something has changed, in your roots, your equipment or your people, and the record tells you before your accounts do.

Record three: fermentation or soaking start and end times, and moisture readings at key stages, per batch.

Why: this is the safety record. The cyanide safety logic depends on those steps running to completion, not on the calendar looking right in hindsight. When something goes wrong with a batch, this is the record that tells you which step failed, and when a buyer or an authority asks how you know your process ran, this is the only honest answer available.

Record four: any residual cyanide test results, from an accredited source where required.

Why: because testing, not process-following, is the real safeguard, and because the requirement is set by your national authority. Keep the results as your business's own safety record, independent of what any customer or regulator later asks for. This is [the record that protects you personally as well as your customers.

Record five: cost per tonne of fresh root processed.

Why: it is the single number that lets you know, batch by batch, whether the business is actually profitable, rather than assuming it from a plausible-sounding market price.

Five records. Now some discipline about how to keep them.

Write at the time, not later. A record reconstructed from memory at the end of the week is a guess wearing the clothes of a fact.

Keep them where the work happens. A book in the house is a book that does not get filled in.

Number your batches. Everything else attaches to that number, and if a customer complains about a specific sack, a batch number is what lets you find out what happened to it.

Make it short enough to survive a hard day. The person filling this in is tired and their hands are dirty. Five short lines will be filled in; two pages will not.

Review them monthly. Records that are written and never read are just work. Once a month, sit down and look for trends: is elapsed time creeping up, is conversion drifting down, is one buyer always the one who rejects?

Now, what the records let you do that nothing else does.

They let you find a problem before your customer does. A conversion ratio drifting downward or a fermentation time quietly shortening shows up in a record book weeks before it shows up as a rejected delivery.

They let you prove your process. When you approach a bakery, a feed miller or an institutional buyer, the thing that separates you from every other applicant is not a lower price. It is being able to show that you know what you make, how consistently, and how you would trace a problem.

They let you cost honestly, which is what Lesson 4 needed.

And they let you improve, because you cannot improve what you have not measured. The difference between a business that gets better every season and one that repeats the same expensive year indefinitely is a book with numbers in it.

That is the end of this course. You started with a crop that survives on poor soil and ends up as one of Africa's most important foods, and you finish knowing its two hardest problems: it spoils in days, and it must be processed correctly to be safe. Both of those are managed with the same two things. Time, and written-down numbers.

This lesson pulls the whole course together, because the decisions you make in the field and the decisions you make at the processing point are not two subjects. They are one chain, and each link constrains the next.

Here is the chain, stated once.

Your variety choice decides your cycle length, your disease exposure, your cyanogenic level and your deterioration window. Your planting material decides whether you carry disease into the field and how full your stand is. Your spacing sets your plant population, which is what turns per-plant root weight into tonnes per hectare. Your weed control through the critical period is worth 30 to 50 percent of root yield. Your pest and disease management decides how much of what you grew survives to harvest. Your harvest timing balances more bulking against more risk. Your lifting technique decides how many wounds each root carries into a 48 to 72 hour deterioration window. Your processing route decides both your market and your safety burden. And your records decide whether you know any of it.

Every one of those depends on the ones before it. An improved variety planted as infected cuttings into an unweeded field, lifted roughly and processed in a shortened ferment, produces neither the yield nor the safety of the practices it borrowed its name from.

Now, the questions this course cannot answer for you, gathered in one place so you can take them somewhere.

Ask your national root-crop research institute or extension office: which varieties are currently recommended for your agroecological zone, which disease strains are locally active, whether an inspected or certified planting-material source exists near you, and whether the biological control agents for mealybug and green mite are established in your district.

Ask your national plant-protection or agrochemical regulator: which pesticide, herbicide and fungicide products are registered, at what dose, and with what safe-use requirements.

Ask your national soil-testing service: what your own soil actually needs, because removal rates and response curves are no substitute for a test.

Ask your national standards body or food safety authority: what residual cyanide limit applies to your product, what testing is required before sale, which laboratories are accredited, and what labelling rules apply.

Ask your cooperative, ministry of agriculture, commodity exchange, and the buyers themselves: current prices, dated, and who is actually buying what, in what quantity, to what specification.

That is five phone calls or five visits. Making them is part of the job, not preparation for it, and no document, this one included, can substitute for any of them.

Finally, your first three actions. Not thirty. Three.

Action one: measure something. Do the test dig from Module 9 and produce a yield figure for your own field, or run the deterioration test from Module 10 on your own variety. Either one replaces a guess with a number, and it will be the first number in this business that is genuinely yours.

Action two: fix the largest leak. Look honestly at where you lose most: weeds in the critical period, disease coming in on cuttings, roots sitting in the sun after lifting, or a shortened ferment. Pick the one that costs you most and change that one thing this season. Not all of them, one.

Action three: start the record book. Batch number, hours since harvest, weight in, weight out, fermentation start and end, moisture check. Six columns. Start with the next batch, whatever state the rest of the operation is in.

Those three actions cost almost nothing and they compound. A season from now you will have your own yield figure, your own deterioration window, your own conversion ratio, your own break-even price, and evidence about what your one change actually did. That is a different position from where most cassava businesses stand, and none of it required capital.

One closing word about the safety material, because it is the part that matters beyond your income. Bad cassava processing has permanently disabled people, and the pressure that causes it is commercial pressure, exactly the pressure this module has been teaching you to handle. When roots are deteriorating and the buyer is waiting and cash is short, the fermentation is what gets cut, because nothing visible goes wrong when you cut it. Build a business with enough slack in it that you are never making that choice. That is the real reason to know your numbers.