Partnership case study: Specialist glass sauce bottles for an organic food brand. Technical glass packaging solutions for acidic condiments and seasonings

Client: The Coconut Company Partnership Duration: March 2019 - Present Products Supplied: 150ml Worcester Sauce bottles, 250ml Dorica bottles

Client Background

The Coconut Company produces premium plant-based products made from raw coconuts, including oils, amino sauces, vinegar, and snacks. Mike Pilgrim founded the company in 2007, and it now operates across multiple markets with teams in the Philippines, Singapore, Hong Kong, and the UK. The company opened their London office in 2015 to serve as their primary distribution hub for European markets.

The company focuses on organic, sustainable coconut-based alternatives and needed packaging that would preserve product quality while reflecting their environmental values.

The Packaging Challenge

The Coconut Company approached us, requiring glass bottles for two specific liquid products: Coconut Aminos (a soy sauce alternative) and Coconut Vinegar (organic cooking vinegar).

The challenge presented several technical requirements:

  • Food-grade glass packaging suitable for acidic liquid products
  • Retail-appropriate sizing for consumer markets
  • Compatibility with existing labelling equipment and processes
  • Sustainable packaging solutions aligned with their organic brand positioning
  • Cost-effective options suitable for their production volumes

The acidic nature of both products required careful consideration of glass composition and bottle neck specifications to ensure product stability and prevent contamination during storage and transport.

Our Technical Solution

We recommended two distinct glass sauce bottles formats, each engineered for specific product characteristics and consumer usage patterns.

250ml Dorica Bottle

This bottle represents an optimal design for vinegar products, with specifications tailored to acidic liquid storage:

  • Capacity: 250ml (8.45 fl oz)
  • Height: 231.9mm
  • Diameter: 50.6mm
  • Weight: 287g
  • Material: Clear flint glass with high chemical resistance
  • Neck Finish: 31.5mm PP screw thread
  • Wall Thickness: 3.2mm for durability during transport
  • Applications: Cooking vinegars, liquid seasonings, acidic condiments

Technical Rationale: The Dorica's elongated profile maximises shelf visibility while the narrow 50.6mm diameter provides controlled dispensing essential for concentrated vinegar products. The high shoulder-to-body ratio reduces breakage risk during automated filling processes.

150ml Worcester Sauce Bottle

This traditional format offers proven performance for concentrated liquid seasonings:

  • Capacity: 150ml (5.07 fl oz)
  • Height: 181.9mm
  • Diameter: 140.5mm at shoulder
  • Weight: 187g
  • Material: Clear flint glass
  • Neck Finish: 28mm PP screw thread
  • Wall Thickness: 2.8mm
  • Applications: Amino sauces, concentrated seasonings, premium condiments

Technical Rationale: The classic Worcester bottle profile provides immediate product recognition for sauce categories. The compact 150ml capacity suits premium positioning while the wider shoulder diameter accommodates standard production line equipment.

Glass Performance for Acidic Products

Both bottles utilise clear flint glass specifically chosen for its chemical inertness with acidic products. Key performance characteristics include:

  • pH Resistance: Stable performance with products down to pH 2.0
  • Migration Testing: Zero flavour transfer during 24-month shelf life testing
  • Thermal Shock Resistance: Withstands temperature variations during pasteurisation processes

Sustainability and Environmental Impact

Our glass bottles deliver measurable environmental benefits that align with The Coconut Company's sustainability commitments:

Recyclability: Glass maintains 100% recyclability without quality degradation. Both bottle formats integrate into existing UK glass recycling streams without processing modifications.

Chemical Inertness: Glass packaging eliminates plastic migration concerns, maintaining product purity throughout shelf life without chemical leaching.

Durability Factors: Higher wall thickness specifications reduce breakage rates during distribution, minimising packaging waste and product loss.

Reusability Potential: Both bottle designs support consumer reuse applications, extending product lifecycle beyond initial consumption.

Technical Compatibility and Handling

These bottles integrate seamlessly with standard food production equipment:

Filling Line Compatibility: Both formats accommodate standard pneumatic and gravity filling systems. Neck specifications match common capping equipment used in food manufacturing facilities.

Thermal Processing: Glass composition withstands hot-fill processing up to 85°C and tunnel pasteurisation cycles without thermal stress fractures.

Storage Requirements: Products maintain optimal stability when stored at ambient temperature (15-25°C) away from direct sunlight exposure.

Closure Systems: Compatible with metal twist-off caps, plastic screw caps, and tamper-evident closure systems. Cork closures also viable for premium presentation requirements.

Labelling Applications: Smooth cylindrical surfaces accommodate pressure-sensitive labels, shrink sleeves, and direct printing applications without surface preparation requirements.

Implementation Results

Since beginning our partnership in March 2019, The Coconut Company has successfully scaled their operations using our glass packaging solutions:

Production Integration: Both bottle formats integrated into existing production lines without equipment modifications, enabling immediate implementation.

Market Performance: Products achieved strong retail placement across UK specialty food retailers, with glass packaging supporting premium positioning strategies.

Supply Chain Reliability: Consistent stock availability maintained production schedules during peak seasonal demand periods.

Quality Maintenance: Zero reported quality issues related to packaging performance, with products maintaining shelf life specifications throughout distribution networks.

Ongoing Partnership Development

Our relationship with The Coconut Company continues to evolve as their product range expands. Regular technical consultations ensure packaging solutions adapt to new product development requirements and changing market demands.

Current collaboration areas include packaging optimisation for new product formulations and evaluation of sustainable closure alternatives that maintain the premium positioning established through glass packaging selection.

For businesses requiring similar glass packaging solutions for acidic liquid products, consult our technical specifications to ensure optimal compatibility with your production requirements and regulatory compliance needs.