Our efforts – our service



  • Micronisation
  • Micronisation under aseptic conditions
  • Milling
  • Homogenization/Blending
  • Sterilization
  • Fractionated sieving
  • Process validation
  • Determination of particle size distribution:
  • Mastersizer (wet and dry dispersion)
  • Microscopic particle size distribution
  • Sieve analysis (air jet sieve)
  • Identity verification (FTIR)
  • Development, validation and transfer of measuring methods
  • Chemical and microbiological purity determination of raw materials and finished goods according to Ph. Eur.

We see the most unusual requests as a personal challenge.



Micronisation under cGMP conditions:

At GfM, we use our air jet mills (e.g. opposed and spiral jet mills) and mechanical mills (e.g. plate beater, pin and hammer mill) to perform micronisations in strict compliance with the cGMP guidelines (more than 30 mills available).
From the first trial with just a few grams right up to tonnes, all with certified quality.

Aseptic micronisation:

Aseptic micronisation is an important process step in the manufacture of sterile pharmaceuticals which cannot be sterilized in their final container. This is one of our company’s competitive advantages.

Product sterilization

We perform sterilization (method according to European Pharmacopoeia) to produce active ingredients and excipients free of germs capable of reproduction (sterile). This can be followed by further production steps such as micronisation, blending and packing under aseptic conditions.

Blending and homogenization
of products

We can produce homogeneous blends according to your specifications both prior to and following the micronisation processes. Modern container blenders mean that even larger quantities are possible at any time.

Product-related sieving process

We perform specific sieving processes to fractionate your product into the grain sizes you specify. Modern technology allows sieving of even very fine material. In addition, we can offer protective sieving of your products before further processing in our plant.

Process validation

cGMP-conform micronization means having a valid process. We are pleased to offer this service by means of the validation of the product manufacturing process. Our service, in which all documentation for validation is closely coordinated with the customer and completed with a wealth of expertise, results in a quality standard which really pays off. Whether for cleaning-, process- or measurement method validation, we are the right partner for your product.

Order processing at GfM


Particle size analysis

Laser diffraction with the Mastersizer
The Mastersizer offers you the possibility of dry dispersion as well as wet dispersion in an aqueous medium, oil or organic solvents for particle size analysis. We perform method development, validation and implementation for the Mastersizer as a service for you in our in-house laboratory and can even apply methods you already use in your company for particle size analysis following coordination.

Air jet sieving

We determine the particle size distribution of your products for all standard sieve sizes with our Hosokawa Alpine air jet sieve. The software we use is FDA-compliant.

Sieve analysis

In addition to air jet sieving, we offer sieve analysis with our vibrating sieves. With this method, we determine the particle size distribution of your product in one step with different mesh sizes.

Microscopic analysis

For determining particle size distribution we offer the possibility of microscopic image analysis, with digital software guaranteeing a measurement in accordance with cGMP.
Microscopic analysis is also much used for the characterization of crystals.labor




Microbiological controls

Microbiological monitoring of individual production areas includes surface contact tests (squeeze test), measurement of airborne germs as well as control of process air. Our production employees and production facilities are regularly checked by contact tests. In addition, measurements are carried out to determine the air particle count in the chambers and the process air. Trend analysis are performed to ensure long-term compliance with the standard.

Monitoring of environment parameters in the sterile area

Temperature, humidity and pressure measurements are generally carried out alongside productions and process validations.

Monitoring of environment parameters in the production area

The environment parameters and the differential pressure are checked and documented at regular intervals.

Cleaning controls

Our internal, independent laboratory performs cleaning inspections using HPLC analysis or TOC in order to monitor the success of our cleaning. The samples are taken and inspected by our laboratory staff and we only use validated methods.

On request, our experienced specialist staff can also conduct product-related cleaning validation procedures for you.

Safety for products, environment and employees

Hygiene of implementation of the cGMP guidelines

Our success is based on the consistent implementation of cGMP guidelines regularly confirmed by the state authorities of Bremen.
The central key factor behind our business success is product quality. The main building blocks for this are the continuous implementation of hygiene plans as well as product group-specific storage and manufacturing (dedicated equipment) of
the active ingredients and excipients.

Environmental protection

Environmental protection is an important part of GfM’s corporate philosophy. The prevention of environmental contamination and its consequences plays a major role. Compliance with cGMP guidelines ensures comprehensive protection.

Safety of employees

As our service range includes the processing of potent pharmaceutical products, we guarantee a high level of safety for our employees. This is possible, among other things, thanks to the use of functional protective clothing. Regular in-house training complemented with external advanced training ensure that our safety measures are always upto-date.


The course of your analysis sample at GfM.

From the first sample to the release.

With certified quality.