Pre-dough fermenter for consistent rye, wheat and spelt processing in large-scale production
The DIOSNA rye Compactline is a mobile, compact sourdough system for flexible and hygienic preparation of rye sourdoughs and wheat pre-doughs.
Available in 2 main variations, for rye and for wheat and spelt, and in multiple capacities, it ensures consistent dough quality, fast mixing, precise temperature control, and easy cleaning—ideal for reliable, space-saving bakery production.
Rye Compactline:
- Traditional and modern rye sourdoughs (≥ TA 220)
- Net capacity of 650 L produces approximately 500 kg of sourdough
- Wheat pre-doughs and wheat sourdoughs
- Multi-stage fermentation processes with custom rest times and agitation speeds
Wheat & spelt Compactline:
- Wheat and spelt pre-doughs and sourdoughs (≥ TA 200–250)
- Single- or multi-stage fermentation
- Compact bakery batches (200–500 kg)
- Flexible stirring, resting, and temperature control


- Overview
- Options
- Benefits
- Gallery
The Compactline offers bakeries a high-performance, compact fermentation system built for flexibility and repeatable quality. Its three-walled stainless steel construction includes an integrated cooling unit and optional add-ons like a temperature control unit and frequency converter. The result: a system that adapts to your product requirements, floor plan, and process control needs.
Compact performance with high output
With a range of working volumes to suit different production scales, the Compactline system is ideal for bakeries looking to scale rye or wheat sourdough production without dedicating extensive floor space. Its mobile, plug-in-ready design supports quick installation and versatile use.
Hygienic and operator-friendly design
The fermenter features a three-walled stainless steel tank with integrated cooling, easy-to-clean surfaces, and an anchor agitator with wall and floor scrapers for uniform temperature and mixing. The system is designed for hygienic production with minimal manual handling.
Precision control and automation
With PLC controls and a user-friendly touch panel interface, operators can freely program rest times, temperatures, and mixing speeds. The integrated DIOStart system ensures reproducible fermentation results, while the optional temperature control unit and frequency converter provide advanced process flexibility.
Optional features
- Multiple net capacities to suit production requirements
- Three-walled stainless steel fermenter with integrated cooling
- Anchor agitator with wall and floor scrapers
- PLC control with intuitive touch panel interface
- Dry-running gear pump (BT3) with 180° return bend dosing hose
- Ready-to-plug-in design for rapid commissioning
- Easy-to-clean, hygiene-focused construction
- Compatible with DIOStart starter cultures for consistent dough quality
Optional add-ons
- Temperature control unit for variable thermal processing
- Frequency converter for adjustable stirring speeds
- Customizable rest times and fermentation stages
- Mobile or fixed installation formats
- Technological coaching and support for sourdough optimization
- Mobile and ready to plug in
- Flexible cooling and optional temperature control unit and/or frequency converter
- Process-optimised control with freely programmable parameters
- Hygiene- and cleaning-friendly design
- Easy to operate
- Reproducible processes with DIOStart support
Rye Compactline


Wheat & spelt Compactline



Starter cultures
& pre-dough starters
Elevate your fermentation process to reliably produce baked goods with the perfect texture and flavor profile. Coperion’s Diostart range is optimized for use with our fermenters, ensuring your dough always rises to the occasion.
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