Short answer
Care for black tie & tuxedos depends on the chosen cloth and its care label. Ask the tailor for instructions for the exact garment; follow the label and avoid heat or cleaning methods it does not permit.
Black tie is worn rarely and rests long: brushed after wear, steamed never ironed, and stored in a breathable bag against the season.
Follow the care label for the chosen cloth and ask the tailor if the instructions are unclear. Storage, ironing, steaming and cleaning advice can vary by fibre and finish.
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