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36.3 x 24.1 cm ⏐ 14.3 x 9.5 in (300dpi)
MATTEIS / LOOK AT SCIENCES / SCIENCE PHOTO LIBRARY MATTEIS / LOOK AT SCIENCES / SCIENCE PHOTO LIBRARY
Freeze-dryer. Technician loading samples into a lyophiliser, or freeze-dryer. This machine is used to freeze-dry food samples for long-term storage. The sample is first frozen and then exposed to a vacuum, which causes the water to sublimate (change from a solid to gas) from the sample. Photographed at the European Commission's Institute for Reference Materials and Measurements (IRMM), Geel, Belgium.
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