In the UK, where the demand for local, natural and sustainable food is growing rapidly, small food producers, farm shops, and artisanal transformation labs face a serious challenge: how to maintain high product quality while improving efficiency.For many, traditional cooking and concentration methods are time-consuming and limiting. But an advanced solution exists: vacuum cookers equipped with the patented Auto Vacuum Tec technology by Frigojollinox.
I. The limits of traditional concentration methods
1.1 Excessive processing time
British producers—such as jam-makers in Yorkshire or fruit farms in Kent—often spend over 2 to 3 hours cooking down their batches.
“It used to take us almost 3 hours to boil down 10kg of strawberries. That’s an entire morning gone,” says a small-scale producer in Norfolk.
1.2 Quality degradation
Traditional high-temperature cooking causes caramelisation, colour loss and vitamin destruction. According to a DEFRA report (2021), heat-based processing can lead to a 30–40% reduction in vitamin C in berry-based products.
1.3 Inconsistent results
Manual methods are highly sensitive to raw material variation (ripeness, moisture content, weather). Ensuring consistent Brix, texture and flavour across batches is very difficult.
1.4 1.4 Contamination risks
Manual operations, typical of pot cooking, increase the risk of contamination and oxidation. One Devon-based jam workshop lost an entire batch due to reinfection after manually adding lemon juice during boiling.
II. How vacuum cookers work
Vacuum cookers remove water from food at lower temperatures (typically 45–60°C) by creating a vacuum inside a sealed vessel. This drastically reduces boiling point and allows gentle, precise concentration.
Key stages of the process:
1. Load the product into the sealed stainless steel chamber.
2. Create vacuum to reduce pressure.
3. Gentle evaporation of water at lower temperatures.
4. Vapour condenses and is collected, with zero water waste.
5. Real-time control of Brix, temperature and texture.
6. Safe, quick product discharge with no exposure to air.
III. What makes Auto Vacuum Tec a game changer?
– Fully automated process via Easy-Jam interface
– Servo-assisted lid opening and automatic hermetic closure
– Ingredient addition and sample testing without vacuum loss
– No water consumption
– Up to 90% shorter processing times
– Consistent, high-quality results
– Ideal for small workshops with limited space and labour
Learn more about the Auto Vacuum TEC system developed by Frigojollinox.
IV. Real-world applications in the UK
4.1 Jam & preserve production
Ideal for raspberry, rhubarb, strawberry and gooseberry jams, vacuum cookers retain vibrant colour, bright aroma and natural consistency.
4.2 Syrups and reduced juices
Transform surplus fruit (e.g., apple orchards in Somerset) into aromatic syrups without burning or bitter notes.
4.3 Chutneys, sauces, relishes
Improved shelf-stability and richer textures for onion chutney, tomato relish, apple sauce, etc.
4.4 Baby food and purées
Gently processed to preserve nutrients. For example: organic butternut squash puree for farm shop private labels.
4.5 Dairy and plant-based creams
Used as a professional vacuum cooker and steamer for condensed milk, oat cream, and more.
V. Who is this for?
– Artisanal food processors and jam makers
– Farm-based transformation units
– Natural and organic product brands
– Countryside hospitality and glamping businesses
– Rural co-operatives and food hubs
VI. A sustainable and profitable technology
– Up to 70% energy savings
– Zero water waste
– Reduced material loss
– Faster batch turnover and improved margins
VII. What’s next? Try it yourself
Want to see how vacuum cookers can transform your production?
Frigojollinox offers:
– Free product test with your raw materials
– Basic and advanced training
– Free consultation with a food technologist
– Custom system quote with layout planning
Discover the full range of vacuum cookers by Frigojollinox or request a free consultation www.frigojollinox.com
