Project Brief
HomeHot-Fill Dosing & Film SpecsSizing, Pricing & FATHot-Fill FAT & Leak Checklist

Factory Acceptance Test (FAT), -0.08 MPa Leak & CIP Checklist for Jelly Lines

Validate 80 °C hot-gel dosing accuracy across all lanes, -0.08 MPa submerged vacuum burst resistance, child-safe tear/peel force, and hot CIP sanitation.

SUPPORT

Focus: jelly packing machine leak test

Check Compatibility

Why Cold-Water Testing Misses 90% of Hot-Jelly Seal Failures

Cold tap water has zero sugar stickiness, zero 80 °C vapor expansion, and zero gelling solidification during machine stops! Grounded in jelly machine sizing and selection and hot-fill jelly dosing and film specs, insist on running live hot carrageenan/konjac gel through every lane or cup row during Factory Acceptance Testing (FAT)—followed immediately by -0.08 MPa vacuum water-chamber burst testing.

One single leaking stick inside a 40-piece retail bag coats all 39 clean sticks in sticky syrup and triggers mold—so target zero leakers across 1,000 consecutive packs.

Six-stage hot-fill hydrocolloid jelly cooking, packing, pasteurizing, cooling, and multipack line
Keeping carrageenan, konjac, and agar solutions at 75–85 °C inside jacketed hoppers prevents premature setting inside piston manifolds.

Five-Point Hot-Jelly FAT & Daily QC Protocol

Pre-shipment acceptance tests and hourly shop-floor QC checks:

Verification Test Test Procedure on 80 °C Hot Gel Acceptance Standard
1. Cross-Lane Weight Uniformity Weigh 20 consecutive sticks/cups from EVERY lane/row Within ±0.5%–1.0% across all lanes
2. -0.08 MPa Vacuum Burst Bath Submerge hot & cooled packs in acrylic vacuum chamber for 60s Zero air-bubble streams; holds 60 kg compression plate
3. 15-Min Stop-and-Restart Test Pause machine 15 min with 80 °C gel in hopper; restart Heated block keeps nozzles liquid; zero gelled plugs
4. Sip-Tear & Cup-Peel Ergonomics Hand-tear 30 sticks at notch; peel 30 cooled cups Tears straight into sip neck; cup lid peels 6–12 N without shredding
5. 75 °C CIP Flush Verification Circulate hot water + caustic flush through all lanes Complete gel clearance in <=25 min without pipe disassembly

Review factory build guarantees on jelly packing machine manufacturer.

Station sequence on dual-dosing rotary and linear jelly cup filling and two-stage lid sealing machines
Two-stage heat sealing plus precision rim die-cutting prevents leaking cups during 85 °C pasteurization while peeling smoothly for kids.

Hot-Fill Jelly Engineering Notes

  • Inspect Rotary Slitter Knives Weekly on Stick Machines: Dull rotary web-slitting blades leave microscopic fiber hairs that wick moisture—hone or rotate circular blades cleanly.
  • Check Deflation Sponge Wear: Silicone foam air-squeezing pads compress over hundreds of thousands of strokes—keep spare pads on hand so sticks stay flat.
  • Calibrate Cup-Rim Ring Heaters Monthly: Use an infrared/contact surface pyrometer across all 8 or 12 cup sealing rings to verify uniform ±2 °C temperature.

Schedule Your Live Hot-Gel FAT

Submit your stick or cup project brief via Project Brief.

Throughput comparison across tubular jelly-bar VFFS, rotary cup sealers, linear multi-row cup machines, and 12-lane stick packers
Multi-lane stick packers and multi-row linear cup machines multiply gentle 30–40 CPM index strokes into 200–600 PPM continuous output.

Explore related equipment in Jelly Packing Machines, Hot-Fill Dosing & Film Specs, or send your stick/cup dimensions via Project Brief.

Related Specifications

Further Reference