Finding a good supplier for the first order isn’t difficult. The much harder task is maintaining the same aroma, color, and price for the tenth and twentieth batches. Tea is a processed agricultural product, dependent on weather, harvesting seasons, and the skill of the tea maker, so variations between batches are normal. For distributors, each time the tea’s flavor changes, regular customers question it, and after just a few such instances, they lose customers. This article discusses the stability of the supply chain over time: how to establish standards, how to secure contracts, how to prepare for peak seasons, and when to consider establishing a second supplier.
1. Ensuring a stable supply chain involves three main pillars, and it’s not just about quality.
When it comes to a stable supply of goods, most business people only think about quality. In reality, there are three main pillars at play, and a lack of any one will cause damage.
The first axis is consistent quality: each subsequent batch must be similar to the previous one within an acceptable range in terms of aroma, flavor, color, and appearance of the tea leaves. The second axis is production volume: the supplier must deliver the agreed-upon quantity on time, even during peak seasons when everyone needs the product. The third axis is price: the price adjustment range must be within a predictable range so that distributors do not have to constantly revise their price lists.
A supplier that delivers excellent tea but is two weeks late in December, or suddenly raises prices mid-cycle, is still an unstable source of supply. Assessing all three pillars from the outset helps distributors avoid having to fix problems later.
2. Why does tea production fluctuate between seasons?
The quality of tea varies with the harvest season, which is a natural phenomenon and not the seller’s fault. Spring tea yields tender buds, a delicate aroma, and a mild flavor, and is generally considered the best harvest of the year. Summer tea has faster-growing leaves, a stronger liquor, but a weaker aroma. Autumn tea has a pleasant aroma but low yields. Winter tea yields very little.
Besides the harvest season, there are three other variables: the weather each year, the altitude and soil of the specific tea plantation, and the skill of the person processing each batch. In the ancient tea-growing regions of Ha Giang, Yen Bai, or Son La, the difference between batches is even greater due to dispersed harvesting and small-scale processing.
Understanding this rule helps dealers ask the right questions when working with suppliers: what harvest season is the tea from, which plantation lot, what processing method was used, instead of just asking how much it costs per kilogram.
3. Finalize sensory criteria in writing.
Simply stating “the tea must be the same as last time” is not legally binding. To maintain consistent flavor, the distributor needs to translate their requirements into a technical description that both parties can understand.
The minimum description should include: name of the growing area and plot if applicable, tea variety, harvest season, bud standard (one bud, two leaves), finished product moisture content, permissible percentage of broken pieces and stems, liquor color, level of astringency and aftertaste, dominant aroma, and packaging specifications and net weight.
For oolong tea, the oxidation level and the number of roasting cycles should be included. For flavored tea, the number of flavoring cycles and the type of flowers used should be clearly stated, as this is the easiest point to compromise quality, and it’s very difficult to detect visually. This description should be attached to the contract, not just exchanged via text message.
4. Keep control samples and testing procedures for each batch.
A control sample is the simplest yet most effective tool for maintaining consistent quality. The procedure: when a batch meets the requirements, take two identical samples, vacuum seal them, record the batch code and date, give one sample to the supplier, and keep the other for the distributor. This serves as a reference standard for subsequent batches.
Each incoming shipment should undergo a pre-warehouse inspection: parallel brewing of the new batch and a control sample using the same tea ratio, water temperature, and brewing time, then comparing the dry aroma, liquid aroma, taste, and color. Record the results in a simple tracking table, along with photos of the dried tea leaves.
It only takes about fifteen minutes per batch, but this process helps detect deviations before the goods reach the customer, at a time when processing costs are low and still negotiable with the supplier.
5. Framework contracts and annual production commitments
Purchasing goods on a per-order basis leaves distributors at a disadvantage in terms of pricing and delivery priority. Annual or seasonal framework contracts largely resolve this issue.
The framework contract should include the following information: projected annual production volume broken down by quarter, a price list based on production levels, a mechanism for adjusting prices when raw material prices fluctuate beyond an agreed threshold, notice periods for price increases, standard delivery times, attached quality standards, and procedures for handling substandard shipments.
In exchange for a production commitment, distributors should request priority delivery during peak season and the right to maintain prices for a certain period. This clause has significantly more practical value than a few percentage discounts, especially for teas with limited production.
6. Prepare for the peak season.
The domestic tea market concentrates most of its demand in the last quarter of the year and the period before Tet (Lunar New Year), when corporate gift buyers place large and urgent orders. This is also when all distributors place orders simultaneously, and factories operate at full capacity.
The proper preparation method is to work backward from the delivery point: finalize the expected quantity with the supplier about three months before the peak season, place a deposit to secure production space, and separate the packaging order because printing is usually the slowest step in the chain. Tea ingredients for gift orders should be produced and packaged beforehand, leaving the box finishing to be done later.
Dealers should also maintain a safety stock of best-selling items, typically equivalent to two to four weeks’ worth of demand, enough to withstand a delayed delivery without having to turn customers away.
7. Maintain stable selling prices when input costs fluctuate.
Tea raw material prices fluctuate according to the season and weather, while customers are very sensitive to constantly changing price lists. Dealers caught between these two pressures need a clear mechanism instead of reacting to each new price quote.
Three commonly used tools are: agreeing on price adjustment margins in the framework contract, for example, only adjusting when input prices fluctuate beyond a certain threshold and requiring advance notice; placing large orders during favorable seasons for long-term stocks; and maintaining a fixed price list, usually every six months, instead of making minor adjustments.
When a price increase is necessary, it should be accompanied by visible changes such as improved packaging or added traceability information, so that customers understand the reason behind it instead of just seeing the higher price.
8. Risks of relying on a single supplier
Long-term relationships with a single supplier offer many advantages: mutual understanding of standards, priority delivery, and better pricing policies. However, complete dependence on one source creates a concentration of risk that many distributors only realize after a problem has occurred.
Common scenarios include: crop failure or weather-related issues, factories receiving large export orders and prioritizing other customers, factories drastically increasing prices knowing the distributor has no alternative, or factories opening their own retail channels to compete directly in the distributor’s market.
Measuring risk is simple: calculate the proportion of revenue dependent on a single supplier. When one source accounts for over seventy percent of the value of imports, the distributor should consider this a warning threshold and begin preparing a backup plan.
9. When should you turn on the second power source and how should you turn it on?
The second source doesn’t necessarily have to be a complete replacement supplier. A more appropriate practice is to have a backup source for the most critical product lines, typically a group of three to five lines that contribute the majority of revenue.
When to open a new supplier: when one source has a very high market share, when the current supplier has previously missed delivery deadlines during peak season, when the distributor starts receiving large-volume gift orders with fixed deadlines, or when preparing to move into the regional distribution phase.
The approach should be gradual: place small batches for testing and comparison with a control sample, run a trial of one product for several months, assess stability, and then increase the proportion. Be transparent with the main supplier that this is a contingency plan to ensure capacity, not a way to force down prices. A reasonable reference ratio is to keep the main source around seven parts and the secondary source three parts.
10. Monitor suppliers using data and conduct regular reviews.
A stable supply chain is the result of continuous monitoring, not a single successful selection. Dealers should maintain a simple tracking sheet for each supplier, updated after each shipment.
The indicators should include: the percentage of lots meeting sensory standards compared to the control sample, the average number of days of delayed delivery, the percentage of deliveries of the correct quantity, the number of price adjustments per year, the response time to complaints, and the completeness of the quality documentation accompanying each lot.
Every six months, a review meeting with the supplier should be held: clearly identifying any non-standard batches with supporting evidence, agreeing on corrective actions, updating the technical specifications, and outlining the production plan for the next period. This data-driven approach maintains relationships, applies appropriate pressure, and provides a foundation for the distributor to develop private label brands or eventually move towards exporting.