Lab Beakers

Choose borosilicate glass (e.g., Pyrex-style) for good thermal and chemical resistance; choose soda-lime glass for low-cost, non-critical uses; choose polypropylene or HDPE plastic for lightweight, shatter-resistant handling and when working with aqueous solutions that don’t require high heat or organic solvents

Select capacities based on typical tasks: 50–250 mL for small reactions and measurements, 500–1000 mL for mixing and larger preparations, and multiple sizes for flexibility; consider the graduated markings and mouth diameter for pouring and stirring convenience

Look for uniform wall thickness, clear and accurate graduations, a well-formed spout, heat-resistant material (borosilicate), and manufacturing standards or lab-grade descriptions; thicker-walled and annealed glass resists thermal shock better

Plastic beakers (polypropylene, polystyrene) are suitable for routine mixing, temporary storage, and fieldwork due to impact resistance; avoid them for high-temperature heating and when working with strong organic solvents that can swell or dissolve plastics

Rinse promptly after use, use appropriate detergents and brushes for residue, avoid abrasive scrubbers on graduations, dry thoroughly to prevent water spots, and store upright on a stable rack or shelf to avoid chipping; follow solvent-specific cleaning procedures when needed

Graduations on beakers are approximate and intended for rough volume estimates and mixing; use volumetric flasks, graduated cylinders, or pipettes when precise measurements are required

Wear appropriate PPE (gloves, goggles), heat glassware gradually to avoid thermal shock, use tongs or heat-resistant gloves for hot beakers, avoid rapid temperature changes, and inspect for chips or cracks before use to prevent breakage