Concentration is not formulation
Tomato paste is a concentrated tomato product produced by removing water from prepared pulp. Puree sits at a lower concentration and may be prepared for a different downstream use. Ketchup is a formulated product: tomato paste or pulp is combined with ingredients such as sugar, salt, vinegar and spices, then mixed, heat treated and filled into a retail container.
The FAO ketchup flow sheet describes cooking tomato pulp or paste with spices, onions, garlic, sugar, salt and vinegar and then finishing the mixture. That is a formulation route, not an evaporation route. A bulk-paste ketchup line therefore does not need a fresh-fruit evaporator simply because the main ingredient is tomato.
This distinction matters at the start of a project because the same word can hide different scopes. A buyer asking for a “tomato paste line” may mean a fresh-fruit evaporation plant, a paste reprocessing and packing operation, or a ketchup kitchen. Clarifying the product identity before discussing capacity prevents a quotation from solving the wrong problem.
Check the destination identity rule
Product names carry expectations that can be legal, commercial or both. The Codex Alimentarius standards registry is a starting point for checking the current standard text, revision and scope that apply in a destination market. It is not a substitute for reading the named standard, the buyer’s specification and any local labelling rule.
The FAO small-scale manual illustrates a historical classification of tomato puree and simple, double and triple concentrate by °Brix bands. Those bands are useful as an illustration of why concentration matters, not as a universal current limit. A project should confirm the applicable identity rule before fixing a product name, a label claim or an equipment acceptance test.
The practical check has three parts: the product name used in the destination market, the compositional or process requirements attached to that name, and the labelling and claims that will appear on the pack. A standard registry can point to the relevant text, but someone still has to read the current revision and confirm that it applies to the actual product and market.
Link composition with equipment duty
Paste production emphasizes extraction, evaporation, final thermal treatment and aseptic bulk filling. Puree production may stop at a lower concentration and connect to a different preservation and packaging process. Ketchup production emphasizes ingredient preparation, mixing, texture treatment, thermal processing and retail filling and closure.
Recipe composition also changes machine behaviour. Sugar and solids affect viscosity and heat transfer; particles affect homogenization and filling; acid and preservatives affect the thermal and microbiological brief. A mixer selected for one recipe is not automatically suitable for another, and a filler that handles smooth paste may struggle with a particulate sauce.
The equipment sequence should therefore be read as a consequence of the product definition. If the product is paste, the central duty is water removal and protection of the concentrate. If it is puree, the central duty may be preparation and a lighter preservation step. If it is ketchup, the central duties are formulation, texture and retail packaging. Mixing those sequences creates unnecessary equipment and unclear validation.
Revalidate after reformulation
A reformulation is a process change, even when the equipment stays the same. Record the new composition, the changed ingredient function and the process steps that are affected. Recheck mixing uniformity, texture, thermal response, filling behaviour and the package’s compatibility with the product.
Do not carry a previous validation result across a new recipe without evidence. The appropriate trials depend on the product, the process and the market, and a competent food-safety review remains necessary. This article can frame the questions; it cannot establish a scheduled process or a shelf-life claim.
The evidence should match the change. A texture change may need a different mixing or homogenization trial; a solids or pH change may affect thermal response and product stability; a new package may need its own filling and closure checks. Record what was tested, on which product and against which acceptance criterion.
Make identity an explicit project input
A useful project brief names the product, its composition, the destination market, the applicable identity or labelling rule, the intended package and the required shelf life. Those inputs belong beside the capacity and raw-material assumptions, not in a marketing paragraph at the end.
When identity is explicit, the equipment scope becomes easier to defend: paste lines concentrate, puree lines prepare and preserve a lower-concentration product, and ketchup lines formulate and fill. The difference is not a matter of naming. It changes the machines, the utilities, the validation work and the commercial promise.
Sources
Primary documents used for this analysis. Read the named section in context before applying it to a project.
- FAO-WHO Codex Alimentarius standards registryFAO and WHO
- FAO Technical manual on small-scale processing of fruits and vegetables, Chapter 7: Tomato puree and simple concentrateFood and Agriculture Organization
- FAO Fruit and vegetable processing, Appendix I: tomato ketchup or sauce flow sheetFood and Agriculture Organization
Source links are provided for verification. Inclusion does not imply endorsement of this site or of any equipment configuration.
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Share the incoming material, the product identity you need and the packaging boundary. We can help frame the equipment scope without pretending that an article replaces a trial or a food-safety review.