A method (100) for tanning a smoked salmon skin, comprising a step of tanning (160) a smoked salmon skin comprising: soaking (161) the smoked salmon skin in a solution comprising a phosphonium ion at a content greater than or equal to 4% by weight relative to the weight of the skin of smoked salmon, and soaking (162) of the skin of smoked salmon in a solution comprising a hydrogen peroxide at a content greater than or equal to 0.5% by weight relative to the weight of the skin of smoked salmon.
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