Chocolate business

Chocolate Equipment RFQ Checklist: 17 Questions to Ask

By Oliver BennettPublished October 15, 2026Updated October 15, 20269 min read

A request for quotation for chocolate equipment should ask every vendor the same questions and get a written, line-by-line answer to each. The 17 below cover guaranteed throughput, cycle time, utilities, dry cleaning, food contact and CE documents, controls, acceptance tests, spare parts, service, commercial terms, foreign-body control, allergen changeover and the checks specific to each machine. Send the same list to everyone, or the quotes will come back with different scopes.

The machines these questions refer to, in process order, are in chocolate production line: machines you need, in order. Whether to build a plant at all, and at what size, is covered in how to start a chocolate factory.

Where the checklist comes from

An Oklahoma State University fact sheet by Bowser (2017) on buying food equipment notes that no recognized specification format exists for food equipment in general, and we found none written for chocolate lines. So the list combines that fact sheet, a Kansas State guide on buying used food equipment, EU and US rules, and the technical sources behind the production line guide.

The Kansas guide, by Rausch and Erickson (MF-2096), has a line worth keeping in mind through the whole process: “A sales representative is supposed to sell equipment; the processor’s job is to buy the right equipment.”

Start your specification with a description of the product and process, your utilities and operating conditions, the control level you want, and the materials and standards you expect. Then ask the questions.

The 17 questions to ask a chocolate equipment vendor

Start with capacity. A capacity figure can only be compared with another if it names the product and recipe, the format, how time is counted and which machine is the bottleneck. Those four things a capacity claim must state are set out in the production line guide; put them in row 1 and ask every vendor to state their figure the same way.

Items 3 and 8 to 14 come from the Oklahoma fact sheet. Utilities and commercial terms also appear in the Kansas guide, and spare parts and local repair skills in the FAO’s guide for small food processors. Items 4 to 7 come from the EU rules and FDA guidance in the sections below, and items 15 and 16 from 21 CFR 117.40 and the FDA’s draft guidance. The Kansas guide dates from the 1990s and covers used equipment, and the FAO guide was written for fruit and vegetable processors in 1997.

Hygienic design: what the rules ask of the machine

In the EU, food machinery has to be designed to avoid any risk of infection or sickness (Regulation (EU) 2023/1230, Annex III, 2.1). Food-contact surfaces must be smooth, without ridges or crevices that could hold organic material, and easy to clean. Food and cleaning liquids must drain out completely, lubricants must not reach the food, and the instructions have to say how to clean every area, including the hard-to-reach ones.

The Commission’s guide adds a practical detail. A food contact declaration under Article 16 of Regulation (EC) No 1935/2004 goes into the machine’s technical file and should not be mentioned in the declaration of conformity (Guide to the Machinery Directive, edition 2.3, §277). So don’t look for it in the CE paperwork. Ask for it separately.

In the US, equipment must be adequately cleanable and maintained against allergen cross-contact and contamination, with corrosion-resistant, nontoxic food-contact surfaces and smoothly bonded seams (21 CFR 117.40). These are good manufacturing practice rules.

Chocolate is a dry product, and that changes the cleaning question. The FDA’s 2024 draft guidance on preventive controls lists chocolate and confections among foods processed in dry environments, and says water in such a plant is one of the most significant risk factors for Salmonella. It recommends dry cleaning or controlled wet cleaning, with equipment dried thoroughly whenever water is used. The guidance is a draft and not binding. Still, ask how each machine is cleaned dry, and read any wet-cleaning claim with that in mind.

The detail sits in paid standards: EN 1672-2:2020 on hygiene and cleanability of food processing machinery, and EN ISO 14159:2008 on hygiene in machine design generally.

Two industry schemes sit alongside them. EHEDG bases its equipment certification on its hygienic design principles, fourth edition, December 2025, and that certification is voluntary. The US 3-A Sanitary Standards come from the dairy industry.

Foreign-body control: magnets, screens and detectors

Row 15 rests on US law. Every food plant must take adequate measures against metal or other extraneous material getting into food, and equipment must be designed to avoid contaminating food with metal fragments, lubricants and the like (21 CFR 117.80 and 117.40).

The FDA’s draft guidance adds that equipment with metal-to-metal contact may generate metal fragments, and that a preventive control such as a metal detector may be appropriate. Refiners, mills and crackers fit that description.

Detectors have limits. The FDA’s preventive controls chapter on hazards notes that stainless steel is hard to detect and that orientation matters: a detector set for a 2 mm sphere may miss a thinner stainless wire up to 24 mm long. X-ray can also find non-metal objects such as glass, and physical separation works better in liquids and powders, where fragments don’t get embedded. That points to a magnet or screen on the liquid chocolate plus a detector on the packed product, so ask which of these the quote includes.

A detector isn’t automatically a critical control point. US rules require controls at critical control points only “if there are any,” alongside other controls (21 CFR 117.135), so that comes out of your own HACCP hazard analysis. The FDA’s enforcement policy on hard or sharp objects of 7 to 25 mm in ready-to-eat food (CPG Sec. 555.425) is a policy threshold. It isn’t a detector specification.

Turnkey or standalone: who is the manufacturer of the line

Row 7 matters most when you buy machines from several suppliers and link them yourself. A turnkey line means one supplier designs, installs and starts up the whole line and answers for how the machines work together. With standalone machines, you or an integrator you hire take that job on, and in the EU it comes with legal responsibility.

This is not legal advice, and the Commission’s guidance quoted below is not a legally binding interpretation either. Check with a machinery-safety consultant or the national authority before you rely on it.

The EU machinery rules treat machines that are arranged and controlled to work as an integral whole, to achieve the same end, as an “assembly of machinery” (Regulation (EU) 2023/1230, Article 3).

The Commission’s Guide to the Machinery Directive 2006/42/EC, edition 2.3, §38, sets three tests. The units work toward a common function, such as making a given product. They’re linked so each one’s operation directly affects the others, so the whole needs a risk assessment. And they share a control system. A production line is its example. Connected machines that each work independently aren’t an assembly, and neither is a whole plant of several lines.

The guide’s key sentence for a buyer: “The person constituting an assembly of machinery is considered as the manufacturer of the assembly of machinery.” That person has to carry out the conformity assessment for the whole assembly, mark it, sign a declaration of conformity for it, and keep a technical file with the risk assessment and the design of the interfaces between machines, such as guards, linking conveyors, hoppers and feeders. The guide explains why: the safety of a line depends on how the units are linked, not just on each machine.

With a turnkey line, one supplier is normally the manufacturer of the assembly and provides one declaration for it. With standalone machines, each comes with its own documents, but once you link them under common control, someone becomes the manufacturer of the line. Some machines are sold as partly completed machinery, meant to be built into something else; these don’t carry CE marking and come with a declaration of incorporation and assembly instructions instead.

Adding a machine to an existing line raises the same question. The guide says there are no precise criteria and advises consulting the national authorities when in doubt. Regulation 2023/1230, which replaces the directive from January 20, 2027, frames this as a “substantial modification”: an unplanned change that affects safety by creating a new hazard or increasing an existing risk.

Acceptance tests: FAT and SAT

Whatever you buy, write acceptance testing into the order. The Oklahoma fact sheet says the specification should describe inspection during and after fabrication and a functional test before shipment, “including timing and the consequence of failed tests.” That’s the factory acceptance test (FAT). The one on your site after installation is the site acceptance test (SAT).

IEC 62381:2024 sets out checklists for both, but it’s written for process automation systems.

For a chocolate line, row 9 of the table is where this goes. Name the tests before shipment and on site, say whose chocolate they run on, and write down what happens if a test fails. The sizing section of the production line guide explains why the trial should run on your own chocolate.

Sources and open questions

• For EN 1672-2, EN ISO 14159 and IEC 62381 we read only the scope pages; the full texts are paid.
• We found no independent source on what to measure in a chocolate line’s FAT and SAT, and no 3-A standard specific to chocolate machines.
• Placement of magnets, screens and detectors: the FDA texts are general, with no chocolate-specific source on where each goes in the line.
• Machinery rules outside the EU (US, Turkey and other markets), and food equipment rules outside the EU and US, are not covered here.