A Method for Commercial Sauce Equipment Reviews

What to take away

Commercial sauce equipment reviews should use the same checks on kettles, mixers, pumps, fillers and scales, rather than treating rated output as proof the machine fits a sauce process. For each candidate, record evidence for cleanability, useful capacity and measurement traceability before comparing price.

The five questions that decide a purchase

Answer those five before you look at a price. A cheaper machine that fails on any one of them is not cheaper.

Make the review repeatable: use the same five questions for every candidate and record the supplier's answer, the document or observation that supports it, and whether the answer is demonstrated, unresolved or failed. For cleanability, ask to see product-contact parts disassembled and inspectable, then follow the written cleaning procedure and verify using ATP swabs for general residue; use an allergen-specific swab test for a relevant allergen changeover. ATP is not an allergen test, and the acceptance criterion should come from the facility's documented sanitation program.

Measurement, traceability and why it matters

If a machine measures temperature, weight, volume or time, and your process depends on that measurement, then the number has to be defensible. NIST's session on documenting traceability and calibration intervals covers the essential components of metrological traceability and the documentary evidence required to support both traceability and the intervals between calibrations.

For a small producer, identify which instruments are process critical, set a written calibration interval, and use a calibration provider accredited to ISO/IEC 17025 for the relevant measurement and range when an accredited service is needed. Ask the provider to issue a certificate that records results and the traceability basis. A2LA and NIST's National Voluntary Laboratory Accreditation Program (NVLAP) are U.S. routes to find accredited calibration laboratories; check the lab's scope, not just its accreditation logo. Keep certificates where an inspector or a customer can see them.

Some states' metrology laboratories offer calibration services or referrals; verify the published scope covers the instrument and range. A state metrology laboratory is one place to start, but do not assume its scope includes every instrument.

What a buyer will ask about your equipment

Once you sell to larger customers, your equipment becomes part of their audit. AMS runs audit and accreditation programs based on International Organization for Standardization standards and Hazard Analysis and Critical Control Point principles.

These programs verify documented programs through independent third party audits and are offered voluntarily on an hourly user fee basis. Whether or not you use them, their questions are what a serious customer will ask.

Expect to be asked how equipment is cleaned, how cleaning is verified, how instruments are calibrated, and how a deviation is recorded. Buying equipment that makes those answers easy is worth more than a discount.

For U.S. food manufacturing, check FDA's Current Good Manufacturing Practice, Hazard Analysis, and Risk-Based Preventive Controls for Human Food regulation, 21 CFR Part 117, including the equipment provisions in 21 CFR 117.40. Whether it applies to a particular operation depends on the business and any applicable exemptions. Treat the rule as the regulatory baseline to check, not a claim that every small maker has identical requirements.

Reviewing a used machine

Used equipment is often the right choice, with three caveats: inspect every product contact surface for pitting, scoring, and damaged welds. Confirm parts are still available, ideally by pricing two of them.

Spares are a supplier relationship like any other, and naming a second source before you need one separates a durable operation from a lucky one. Check the machine has documentation; an undocumented machine cannot be validated.

Ask why it is being sold. A machine from a closed business differs from one a growing producer outgrew. Both beat a machine replaced because it never worked properly.

Ask to see it run, with water at least. A static inspection misses noise, leaks and vibration. Those faults turn into maintenance costs.

Fitting equipment into a plan

Equipment decisions belong inside a production plan, not ahead of it. The planning sequence sets out the order those decisions should be made in, and the development gates explain why a new machine can require a process to be re-established rather than simply scaled.

Common questions