The in vitro cultivation of animal and plant cells in a nutrient medium is an essential part of today's research in the field of microbiology. These cultivation approaches can take place at different scales - the vessels are selected accordingly. For test runs, rather small vessels such as culture tubes are used. The original DURAN® culture tubes are distinguished by their uniform wall thickness distribution, minimal thermal expansion and the resulting high resistance to temperature changes. They are therefore particularly suitable for work at very high temperatures and rapid temperature changes.