From frozen to final mix in one machine
GEA mixers equipped with ColdSteam technology are designed to optimize the tempering of fully frozen raw material and prepare it for forming into premium quality products. The technology is fast, reducing tempering time down to minutes instead of hours, and is carried out in the same machine as high performance mixing, so only a single unit is required.

The GEA ColdSteam M defrosting technology provides fast tempering of fully frozen raw material to create a homogenous mix for formed products. The technology rapidly defrosts the frozen material by delivering steam under vacuum conditions, which effectively then uses the thermal energy, rather than heat itself, to defrost. Transferring thermal heat by means of 33 °C steam ("cold steam") means that materials are defrosted within minutes, without scalding or protein denaturation.

Main applications for ColdSteam M industrial defrosting technology include the tempering of fully frozen raw material ready for forming into premium quality products such as fish burgers, vegetable and meat replacement products and chicken nuggets.
High-speed tempering
Tempering in a controlled environment
Defrosting and mixing in one unit

GEA ColdSteam defrosting technology provides fast tempering to create a homogenous mix for formed products. The method, which is ideal for defrosting pre-ground frozen meat, exploits the phenomenon that water boils at a lower temperature in a vacuum. The injected steam condenses on the cold meat block, efficiently transferring thermal energy and reducing defrosting time from hours to minutes. The low steam temperature in the vacuum (approx 33°C, instead of above 100°C) means that scalding or protein denaturation is avoided.
| ColdSteam M 1000 for ProMix | ColdSteam M 1500 for ProMix | ColdSteam M 2500 for ProMix | ColdSteam M 3500 for UniMix | ColdSteam M 5000 for UniMix | |
| Volume | 1400 l | 1780 l | 2500 l | 3500 l | 5000 l |
| Mixing power (variable speed control) | 11 (2x5,5) | 15 (2x7,5) | 22 (2x11) | 30 (2x15) | 37 (2x18,5) |

Les mélangeurs à arbres parallèles GEA ProMix sont idéaux pour la préparation de nombreux produits comme les steaks hachés, les boulettes de viande, la viande préparée, la chair à saucisse, ou encore les pré-mélanges en préparation des émulsions pour saucisses de Francfort. Le corps et les ailettes de mélange du ProMix sont en acier inoxydable. L...

Les mélangeurs à arbres parallèles GEA UniMix sont idéaux pour la préparation de nombreux produits comme les steaks hachés, les boulettes de viande, la viande préparée, la chair à saucisse, ou encore les pré-mélanges en préparation des émulsions pour saucisses de Francfort. L'action de mélange efficace grâce aux vitesses périphériques élevées don...

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