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Clean and dry the skillet completely, coat the cooking surface lightly with oil, wrap it in paper and bubble wrap, and pack it in a double-wall box with the handle braced. Cast iron is heavy, hard, and rust-prone, so the risks are a box that fails under the weight and moisture that reaches bare iron. Weigh the packed box before labelling.
Rust needs bare iron, water, and time, and a parcel in transit supplies the time. Wash the skillet, dry it on low heat on the stove until every drop of water has evaporated, and let it cool before packing. A towel-dried skillet still holds moisture in the pores of the iron and around the handle joint, and that moisture is enough to start surface rust inside a sealed box.
Once the skillet is bone dry, wipe a very thin layer of neutral cooking oil over the cooking surface and the outside, then wipe most of it back off with a clean cloth. You want a sheen, not a pool: excess oil turns sticky and collects dust and packing fibres. Wrap the oiled skillet in plain packing paper first, so bubble wrap never sits directly on the oiled surface, then add the bubble wrap. The paper layer also absorbs any small amount of oil that migrates.
A single-wall mailing box is not enough for cast iron. Use a double-wall box, or double-box a sturdy single-wall box inside a larger one with padding between them. Tape the bottom seams in an H pattern, with tape across the centre seam and across both ends, and run the same pattern on the top. The handle is the weak point in the box: it concentrates the whole weight on one corner, so brace it with extra padding and position the skillet so the handle rests against a padded wall, not against a bare corner.
Keep the skillet away from anything it could damage. Cast iron will dent a tin, crack a ceramic, and punch through thin cardboard if it shifts. If you are shipping the skillet with a lid or accessories, wrap each piece separately and pack them so the skillet cannot slide into them. One skillet per box is the safest rule, and it is worth following even when the box looks large enough for two.
| Step | What to do | Why |
|---|---|---|
| Clean | Wash, heat-dry, cool | Any moisture starts rust in a sealed box |
| Oil | Thin sheen, wipe off excess | Protects the seasoned surface |
| Wrap | Paper first, then bubble wrap | Paper keeps oil off packing and fibres off iron |
| Box | Double-wall, H-pattern tape | Weight breaks weak boxes at the seams |
| Brace | Pad the handle against a wall | The handle concentrates the load |
Cast iron is far denser than it looks, and a single large skillet with packing can weigh several kilograms on its own. Weigh the finished parcel before you ask for a label: if it is over 5 kg, a LetterAgent Xpresspost label will not cover it, so either ship the skillet alone in the lightest box that still protects it, or use a service rated for heavier parcels. Do not try to shave weight by using a flimsy box. The box is the wrong place to save weight with cast iron.
Carry the finished box from the bottom with both hands, and do not trust a handle cut into the cardboard. A loaded cast iron box will tear a handhold out. If you are dropping the parcel off, set it down gently rather than sliding it across a counter: a sliding box drags the skillet against the cardboard and can wear through the bottom.
Ask your AI assistant for a Canada Post Xpresspost shipping label through LetterAgent, approve the exact quoted price, and print the label PDF. LetterAgent labels are Canada-only, flat-rate Xpresspost, and cover parcels up to 5 kg. If the parcel is headed outside Canada, LetterAgent cannot provide the label, so use a carrier that serves that destination directly. Put the label flat on the largest side of the box, clear of seams, and photograph the sealed parcel before drop-off. Many single skillets fit under that limit when packed, but check the scale before you ask for the quote.
Ready to ship it? Get a shipping label with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and get your label.
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