Hot-Fill Packaging: Filling Sauce and Jam at High Temperature Without Burn-On

Hot products such as sauce, jam and fruit paste are often filled at 70–90°C to keep them safe without preservatives. Filling them cleanly at that temperature is a specialist job, and Link Machinery has 30 years of manufacturing experience with hot-fill lines.

Why Fill Hot

Filling at high temperature extends shelf life naturally. The heat kills spoilage organisms, and the sealed pouch keeps the product safe as it cools. This natural preservation method suits producers who want clean-label products.

Design for Hot Products

• Jacketed hoppers and pipes keep temperature steady
• Food-grade stainless and PTFE parts resist heat and sticking
• Anti-drip nozzles stop stringing between cycles

Preventing Burn-On

Burn-on happens when product dries on hot surfaces and contaminates the next batch. Smooth flow paths, quick-release valves and a short hot zone reduce this risk dramatically, and cleaning cycles are built into the control screen as standard.

Cooling and Packing

After filling, pouches pass through a cooling section so they can be cartoned without distortion or film wrinkling. The whole line is designed for easy wash-down between production runs.

Filling a hot product? Contact the Link Machinery team for a hot-fill line designed around your recipe and temperature.