Stirrers and Hot Plates

Choose a hotplate when the process requires heating without powered mixing, and a magnetic stirrer when it requires mixing without heat. A stirring hotplate combines both functions and is appropriate when temperature and agitation must be controlled together. Confirm that the vessel, sample volume, stirring bar, plate dimensions, temperature range, and speed range are compatible with the application.

Compare top-plate dimensions and material, maximum temperature, stirring-speed range, vessel capacity, control resolution, number of stirring positions, and electrical requirements. For temperature-sensitive processes, determine whether the unit accepts an external probe and whether it displays actual sample temperature or only the plate setting. Hot-surface warnings and spill-resistant control placement should also be considered for routine laboratory use.