Porcelain Shelves & Accessories

Measure the internal diameter of your desiccator body before ordering a shelf, since it needs to rest securely on the internal ledge without rocking or leaving large gaps at the edges. A shelf that is too small will not sit stable, and one that is too large will not fit at all.

Larger, more widely spaced holes allow better airflow and are useful for bulkier items, while a finer perforation pattern gives more surface support for small dishes and vials that might otherwise tip into wider gaps.

A larger, heavier ceramic base gives better stability for taller rod and clamp assemblies carrying heavier glassware, reducing the risk of tipping. For lighter single-clamp setups, a smaller base is easier to handle and store between uses.

Porcelain shelves are hard but brittle, so lift and place them gently rather than dropping them into position, and avoid stacking heavy glassware directly on unsupported edges. A chipped shelf can develop weak points that crack further under load.

The shelf separates samples from the drying agent, usually silica gel, sitting in the base of the desiccator, so containers rest on a clean, stable, perforated surface rather than directly in the drying beads. Air and moisture still move freely through the perforations, keeping the drying process effective while the sample stays clean and level.

Porcelain is chemically inert, will not react with drying agents or trace vapours inside the desiccator, and tolerates the weight of hot glassware being placed directly on it moments after removal from a furnace or flame, unlike plastic, which can warp or melt under residual heat.

Measure the internal diameter of your desiccator body at the point where the shelf will rest, usually just above the drying agent chamber. Standard desiccator shelves are sold in matching diameters, so ordering the correct size ensures a snug, stable fit without rocking.

Yes, porcelain shelves handle moderate residual heat from a cooling crucible or evaporating dish without damage. Allow the item to cool briefly on a heatproof mat first if it is still very hot straight from a flame, then transfer it to the desiccator shelf to finish cooling in a dry atmosphere.

Wipe with a damp cloth or rinse with water for routine cleaning, then dry thoroughly before returning it to the desiccator, since any residual moisture will reduce the drying agent's effectiveness. Avoid abrasive scouring pads, which can scratch the glazed surface over time.