Contract Packing vs Building Your Own Filling Line: Finding the Volume Crossover

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The right technology and commercial decisions decide whether a beverage filling machine line runs compliantly, efficiently and profitably. In this guide Sunswell breaks down Contract Packing vs Building Your Own Line for B2B buyers planning or upgrading a production line.

Mechanical Hot-fill Filling Machine for Glass Bottle Juice & Tea Drinks – Sunswell

Executive Summary

Startups face a fork: co-pack (toll manufacture) now, or build your own filling machine line. The right call is financial, not emotional. This guide compares the two for a Combiblock decision.

The Trade-Off

Co-packing needs little capital and gets you to market fast, but margins and control suffer. Owning a line costs CAPEX but captures margin and IP. The crossover is volume.

Find the crossover

Below a volume threshold, co-pack wins; above it, ownership pays. Model both against a water production line scenario before committing.

Comparison

Option CAPEX Margin Speed
Co-pack Low Lower Fast
Own line High Higher Slower

Making the Call

Stage it

Many brands co-pack to prove demand, then buy a CSD filling machine at the crossover; a Juice Filling Machines line follows as SKUs multiply.

Key Takeaways

  • Co-pack = low CAPEX, fast, lower margin.
  • Own line = high CAPEX, higher margin, control.
  • Volume sets the crossover.
  • Stage: prove, then build.

Frequently Asked Questions

When do I build?

When co-pack fees exceed ownership cost at your volume on the filling machine math.

Can I do both?

Yes — co-pack while you build; smooth the transition as capacity comes online.

Plan build-vs-co-pack for your filling machine with Sunswell.

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