Soft drink manufacturing: concentrate, carbonation and the cost of moving water

The franchise structure explains most of the industry

In the classic arrangement a brand owner formulates and supplies concentrate, invests in advertising and holds the consumer relationship, while independent or affiliated bottlers buy the concentrate, add water and sweetener, package and distribute within a defined territory. That split concentrates high margin in the brand and asset intensity in the bottler. It also explains bottler behaviour: territories are defended, volume matters more than mix, and negotiations with the brand owner about concentrate price and marketing support are effectively the profit conversation. Independent producers without such a brand must fund their own demand creation from a similar cost base.

Carbonation and blending as measured process control

Dissolved carbon dioxide is a specification, not an aesthetic. Too little and the drink tastes flat, too much and containers deform, foam during filling and slow the line. Carbonation depends on temperature and pressure, which means chilling capacity and pressure control interact with fill speed in ways that are quickly noticed when either drifts. Syrup preparation carries similar discipline: sugar or sweetener dosing, acidity and flavour addition are checked at blend and again in the finished product, because a diluted or over-strength batch is unsaleable and every one of the containers already filled must be accounted for.

Packaging made where it is filled

Empty containers are mostly air, so shipping them any distance is wasteful. Bottlers therefore blow plastic bottles from preforms on site, immediately ahead of the filler, and buy cans from suppliers who locate near clusters of fillers. This tight coupling means a fault in the blow moulder stops the whole line, and it makes container design changes a joint engineering project rather than a marketing decision. Lightweighting continues relentlessly because material and freight savings compound, but each reduction has to be validated against carbonation pressure, stacking strength and consumer handling.

Reformulation as a permanent commercial project

Public health measures on sugar, differential taxation by sugar content in several countries and consumer preference have pushed the category into repeated reformulation. Replacing sugar changes mouthfeel, sweetness onset, preservation behaviour and sometimes the packaging shelf life, so reformulation is a genuine technical programme with consumer testing attached, not a substitution on a spreadsheet. It also affects the plant, since sweetener handling, dosing accuracy and cleaning requirements differ. Manufacturers who treat this only as a tax question tend to launch products that lose the taste comparison and the listing that came with it.

Route density, promotions and the margin squeeze

Because the product is heavy and cheap, delivery cost per case falls sharply with drop density, so profitability in a territory is a function of how many outlets sit close together. Grocery multiples buy on deep promotional cycles that create sharp volume spikes the plant must serve without holding excessive stock, while the convenience and hospitality channels pay better per unit but cost far more to serve. Operators who take a large grocery contract to fill a line, without pricing the promotional peaks and the delivery pattern, usually find volume rising and cash generation falling.

Frequently asked questions

Why do soft drink companies ship concentrate rather than finished drinks?

Because finished drinks are mostly water, and moving water long distances makes no economic sense. Concentrate compresses the valuable part of the product into a small volume that travels cheaply, protects the formulation as intellectual property, and allows local bottlers to add water, sweetener and packaging near the consumer. It also lets the brand owner keep formulation control and margin while the capital-hungry filling and distribution operations sit with partners closer to the market.

What does a sugar-based drinks tax do to a manufacturer's plans?

It changes the product portfolio before it changes the price list. Where tax bands are tied to sugar content, manufacturers usually reformulate to fall below a threshold rather than absorb or pass on the charge, since consumers resist price increases in a category full of substitutes. That means sweetener systems, consumer testing, possible pack size changes and label updates, plus careful management of the transition so both versions are not on shelf at once. Smaller producers often struggle with the reformulation cost more than the tax itself.

Can an independent soft drink producer compete with the major brands?

Not head-on in mainstream carbonates, where scale, marketing budgets and distribution reach are decisive. Independents succeed in adjacent spaces: regional flavours with local loyalty, adult or premium mixers sold through hospitality, functional and low-sugar niches, and private label supply to retailers. Each avoids direct competition for the same shelf position. The common thread is finding a channel where distribution can be won on service or specialisation rather than on advertising spend.