The Draminski TwistGrain Pro Moisture Meter (Coffee Edition) is a compact, high-precision moisture analyzer specially designed for coffee farmers, processors, exporters, and roasters. Built with advanced impedance technology and sample compression, this professional device delivers fast and reliable moisture readings across all stages of coffee production—from drying and storage to roasting and packaging.
Its small, portable design makes it ideal for field and warehouse use, while its intelligent system ensures consistent accuracy for both Arabica and Robusta coffee. The device supports multiple coffee forms including green beans, parchment coffee, roasted, and ground coffee, helping maintain quality, flavor, and shelf life.
With a large backlit display, automatic temperature compensation, and the ability to store up to 50,000 measurements, the TwistGrain Pro is a dependable tool for ensuring optimal moisture levels and preventing losses due to mold, spoilage, or incorrect drying.
Key Features
· High-accuracy moisture measurement for coffee beans (±0.5%)
· Supports Arabica, Robusta, parchment, cherry, roasted & ground coffee
· Built-in sample compression system for consistent readings
· Automatic temperature compensation for improved precision
· Large LED backlit LCD display for easy reading in all conditions
· Internal memory for up to 50,000 results with date & time
· Compact, handheld, and durable design
· No frequent calibration required
· Data transfer to PC via USB (advanced models)
· Optional external temperature probe for bulk storage monitoring
Coffee Measurement Ranges
· Green Coffee Arabica: 8% – 30%
· Green Coffee Robusta: 8% – 30%
· Parchment Coffee: 8% – 39%
· Dry Coffee Cherry: 6% – 21%
· Roasted Coffee: 2% – 9.5%
· Ground Coffee: 2% – 11.5%
Technical Specifications
· Measurement Method: Impedance (4-frequency system)
· Moisture Accuracy: ±0.5% (standard range)
· Temperature Accuracy: ±0.5°C
· Resolution: 0.1% (moisture), 0.1°C
· Sample Capacity: 90 ml
· Display: 2” graphic LCD with LED backlight
· Memory Capacity: Up to 50,000 measurements
· Supported Crops: Up to 400 species (including coffee & cocoa)
· Power Supply: 4 × AA batteries + CR2032 battery
· Battery Life: Up to 77 hours continuous use
· Data Interface: Mini USB (PC connectivity)
· Dimensions: Approx. 17 × 7 × 8 cm
· Weight: ~520 g
· Operating Modes: Basic & Advanced
· Temperature Compensation: Automatic
· Warranty: 3 years
Applications
· Coffee drying and post-harvest handling
· Warehouse storage and quality control
· Coffee trading and export grading
· Roasting and processing facilities
· Farm-level moisture testing
What’s Included
· TwistGrain Pro Moisture Meter
· Measuring chamber with compression cap
· Carrying case with strap
· USB cable
· Batteries (AA + CR2032)
· User manual