When all the repairing is complete, the bruises are taken out, and the bottoms of the stew-pans and saucepans are laid flat or made level, the preparation for retinning properly begins. Commence with the application of a coat of pure commercial muriatic acid to eat off or remove the dirt and the portions of the old or previous tinning. When the vessels have stood a sufficient time, they are thoroughly scoured inside with good sharp sand, with the addition of some common salt, and then washed clean, care being taken that all the old tin is off when burnt, and that nothing greasy gets inside. Then while the vessel is yet damp a coat of finely powdered sal ammoniac is sprinkled over the inside, and a coat of wet salt is carefully put on the outside to guard against the effects of the different gases from the fire.

Now take a quantity of block or ingot tin and slowly melt it in a ladle, being careful not to allow any part of it to become too hot or get burnt. When the tin is melted and ready, then warm and dry the vessel to be tinned, and pour a sufficient quantity of tin into it. Next take a sal ammoniac wad, and with it rub and agitate the liquid tin over the entire inside surface of the vessel until every part is well covered, and then pour out the bulk of the liquid tin. After heating the vessel to a uniform heat all over, take a wisp of clean, soft flax-tow, the hand first being protected by means of a glove which has had the tips of the fingers cut off as far as the first joint, and whisk it in a pan of powdered sal ammoniac; then with a light hand and a few quick motions, first around the left side and then the right, and then across the bottom, wipe out the residue of the tin, leaving only a clear bright coat on the surface of the vessel. Only by constant practice can this operation be accomplished or excellent results secured. Being a few months out of practice will seriously affect a man's proficiency in the sense of touch and cause him many unpleasant and annoying failures. While the tinning process is going on, a boy is busily scouring and preparing other vessels.

The tinning process being over, the next in order is to scour each article with clean white sand on the outside to remove the salt, and inside any sal ammoniac that might be left. This scouring must be carefully done, and it is best to have a separate place for each operation, so that when the outside is cleaned off the inside can be scoured without fear of contamination from the salt; because if the outside scouring wisp should by mistake get on the inside the work would be spoiled and can scarcely ever be restored again, so it is best to keep the wisps far enough apart to ensure them from being taken up and used by mistake. After the sal ammoniac has been scoured off and the surface outside and inside is clean and bright, the articles are rinsed off in clear water and dried in clean, fine sawdust kept in a large box, and then stood around a large forge-fire to be dried more thoroughly. Next brush off the sawdust, and with a clean, soft linen or cotton rag and clean whiting, polish the inside; then with another rag and a little crocus polish the outside and the job is complete.