Technical Articles
How to dry flowers with silica gel: preparation, steps, 2 to 7 days, microwave, which flowers suit it, re-drying the beads, storage and common mistakes.
What do color-changing desiccant beads mean: blue to pink, orange to green? Color chart for each bead type, is cobalt poisonous, when to replace, re-drying and choosing beads for EU export.
What humidity is safe: below 60% RH, cartons, pallet timber, GPP medicine, cameras, paper. Thresholds by goods, container rain, zone IVb and how to control humidity in warehouses and containers.
How to use desiccant packets correctly: dose formula in grams per volume, tables for wardrobes, safes and 20ft 40ft containers, placement, when to replace and common mistakes.
Oxygen absorbers use iron powder, desiccants use silica gel, clay or calcium chloride. Comparison table, cc sizing, ethylene, why not to use them together and how to choose by goods.
Desiccant packet hot, put in water, leaking or popping: is it dangerous? Silica gel, calcium chloride, quicklime and oxygen absorbers compared, and what to do when a packet splits.
HS code for desiccant: silica gel 3824.99.99, clay 3802.90.20, calcium chloride 2827.20. Import duty 0%, VAT 10%, documents, labeling, MSDS and real customs classification.
Desiccant types compared: silica gel, clay, calcium chloride, molecular sieve 3A 4A 5A, alumina. Capacity by humidity, heat tolerance, reuse and how to choose.
Reusing desiccant beads: dry at 120 °C for 2 to 3 hours. Oven, microwave, air fryer and sun compared, which types can be reused, shelf life, storage and disposal.
What happens if you swallow a desiccant packet? Tell silica gel, blue cobalt beads, calcium chloride and iron oxygen absorbers apart, and what to do for children, pets and eyes.
