COLO.SCIENCE – BAG BLENDERS / STOMACHER
Bag blenders (Stomacher laboratory lab blenders) are essential instruments for sterile, high-speed homogenization of samples inside disposable filter bags, without risk of cross-contamination. They are widely used in microbiology, food safety testing, environmental labs, and pharmaceutical QC to prepare uniform liquid extracts prior to analysis or culturing.
Stomacher bag blenders operate by mechanical peristaltic-style paddles that rhythmically compress and shear the sample within a sealed sterile bag. This enables rapid particle dispersion, microorganism extraction, tissue homogenization and solution clarification, while keeping the system clean and operator-safe. COLO.Science bag blender solutions include hand-positioned bag loading, adjustable paddle speed, digital timing, and noise-managed laboratory operation.
HIGHLIGHTS
- Fast, sterile sample homogenization inside disposable bags
- No cleaning of probes or vessels—bag keeps system clean
- Reproducible energy delivery using stable paddle pressure
- Suitable for liquids, tissues, sediments, and food matrices
- Operator-safe workflows with minimized noise and vibration
TYPICAL USES
- Microbiology—bacteria and particulate extraction from liquid suspensions
- Food safety—pathogen screening and sample homogenization
- Environmental testing—sediment and particulate dispersion
- Pharmaceutical QC—sterile batch sample preparation
- Teaching laboratories—repeatable homogenization fundamentals
TECHNICAL SELECTION GUIDE
- Bag size – match chamber width to routine bag volumes
- Paddle speed – choose adjustable speed for delicate matrices
- Pressure system – stable, solvent-safe compression improves reproducibility
- Timer – digital timing for standardized protocols
- Noise & vibration – enclosed or damped designs improve comfort and safety
Bag blender
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