Inspection, quality and quantity control
Plan vision, barcode, checkweighing, contaminant detection, reject verification and legal quantity checks.
7 practical guides · 3 calculators · Updated 1 September 2026
Where to start
Define the defect, hazard or quantity result first. Then select detection, presentation, decision, rejection and record controls that can be challenged with representative products.
Use the guide that matches your decision
Each guide begins with a direct answer, then lists the information to collect, the decision sequence and common mistakes.
Vision inspection for packaging lines
Plan camera inspection for labels, caps, codes, seals, components and pack presence using clear defect definitions and reject verification.
Open customer guide →
Barcode verification vs barcode scanning
Understand the difference between reading a barcode and grading its print quality for production and packaging control.
Open customer guide →
Checkweigher vs metal detector vs X-ray inspection
Compare checkweighing, metal detection and X-ray inspection by the defect each system can detect and the product effect.
Open customer guide →
Reject verification on packaging lines
Design a fail-safe reject system that proves failed packs leave the production flow and that reject faults stop or alarm the line.
Open customer guide →
Average quantity, e-mark and checkweighing
Prepare a production quantity-control system for pre-packed goods using suitable measuring equipment, sampling, records and process control.
Open customer guide →
Filling accuracy and legal quantity control
Separate filler repeatability, process capability, container variation and quantity-control evidence when reducing underfill risk and giveaway.
Open customer guide →
HACCP controls on packaging lines
Connect packaging machinery checks, critical limits, monitoring, corrective action and records to the site food-safety management system.
Open customer guide →Free production tools
Use the results as planning estimates and retain the assumptions used.
First-pass yield and reject-rate calculator
Calculate first-pass yield, final yield, rework rate and scrap rate without hiding quality losses.
Open free calculator →
Fill giveaway cost calculator
Calculate annual product giveaway from average overfill, units produced, production days and product cost per kilogram.
Open free calculator →
Filling heads and output calculator
Estimate filling output and the number of simultaneous heads required from dose cycle, handling time and expected efficiency.
Open free calculator →Useful questions before the next step
Can one inspection system check every defect?
Where should inspection be placed?
What is reject verification?
How should acceptance be tested?
Ask a production question
Tell us what you are producing, the pack you use, the output you need and the problem you can see.