How to Select a Hotfill Machine for Glass Bottle Juice

Views: 1957 Author: Howie SUN Publish Time:
Juice is a product-first decision: acidity, pulp and heat sensitivity choose the filling temperature, and the temperature chooses the bottle.
Key facts at a glance
Filling systemHot-fill, up to 85 C
Capacity range6,000-36,000 BPH at 0.2-2 L
ContainerHeat-resistant PET geometry, or glass
LineHot-fill monobloc with tunnel pasteuriser
ProductsJuice, tea, nectar, functional drinks
Key controlFill temperature, hold time, cap seal

What actually decides the shortlist?

Four inputs fix the shortlist: the product, the package, the daily demand and the number of formats per week. Everything else, including the brand of the PLC, is a detail that can be settled after those four are written down.

How do you compare a hot-fill line with a cold-fill line?

Compare them on the product, not on the machine. Hot fill suits acidic juice and tea in heat-resistant PET. Cold fill needs a preservative system or a separate sanitising step, but it protects heat-sensitive flavours and vitamins and uses a lighter bottle. The decision is a product decision with a packaging cost attached.

RouteTemperatureWhat it costs
Hot fillUp to 85 CHeat-resistant bottle and a cooling tunnel
Cold fill with preservativeAmbientFormulation constraint, not a machine constraint
Cold fill with in-line pasteuriserProduct-side onlySeparate pasteuriser and a closed filling zone
Hot fill in glassUp to 85 CGlass mass, slower line, higher transport cost

The unit behind this configuration is the Hotfill Type Filling Machine for Juice.

Why does a hot-fill bottle need a cooling tunnel?

The bottle leaves the filler at up to 85 C and has to come down in a controlled ramp. A plunge cools the outside first, the inside contracts later, and the panel pulls in. The tunnel zones are set per bottle geometry and checked with a probe in the product.

Valve count, utility schedule and footprint sit on the Juice By Volumetric Filler page.

What does a glass juice line change?

Glass brings mass, breakage and a slower line. It also brings a closure decision: crown, lug or screw. A glass hot-fill line usually runs at a lower rate than the same filler on PET, and the difference is handling and inspection, not the valve.

The same question is worked through from another angle in How Hotfill Juice Lines Ensure Food Safety Compliance.

How to read the numbers. The BPH figures quoted are reference ranges on the product specification. Hot-fill lines lose time to heat-up and cooling that a rated BPH does not include; plan on 0.65-0.85.

Frequently asked questions

What temperature is juice hot-filled at?

Up to 85 C, set per product and per bottle. The exact set point and tolerance belong in the product specification, because acidity, pulp content and bottle wall thickness all move it.

Does hot filling replace pasteurisation?

It replaces the bottle steriliser for acidic products, because the fill temperature and hold time do the microbial work. It does not replace correct product formulation or a validated hold tube.

How long does a hot-fill line take to reach temperature?

It depends on the hold tube volume and the heater capacity. The line is not production-ready until the return temperature is stable, so start-up time belongs in the daily plan rather than being discovered at shift start.

Can one line run juice and tea?

Yes, if the filler, the recipe and the downstream cooling are specified for both. Tea usually needs a finer filtration step and a different deaeration setting, so the changeover is a recipe and filter change, not just a new label.

Key takeaways
  1. Hot fill does pasteurisation and bottle sanitising in one step, and charges for it in bottle cost.
  2. Cap seals and valve O-rings are the first wear items on a hot line.
  3. Cold filling moves the microbial control from the filler to the product and the plant.
  4. Colour loss is a temperature and hold-time decision.
About the author
Written by the Sunswell engineering team - led by Howie SUN, Founder & CEO, with 14 years in filling and blow-moulding equipment R&D and turnkey project delivery across 71+ countries.
Last reviewed: 2026-08-28 . Reviewed by Sunswell engineering team
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