What technique is sometimes employed before the main acid cure to ready the fish for ika mata?

Answer

An initial brine bath (salt-water solution)

Some cooks employ a lesser-known preparatory step involving an initial brine bath before the primary curing stage begins with lemon or lime juice. This step consists of briefly soaking the fish in a mild salt-water solution, which is essentially simulating a gentle sea water bath. The purpose of this brine is twofold: it can help draw out excess moisture from the fish, or alternatively, it can slightly toughen the surface. This preparation is particularly beneficial if the cook suspects the fish has a high water content, preventing the final ika mata from being diluted by excess liquid released during the subsequent citrus marination.

What technique is sometimes employed before the main acid cure to ready the fish for ika mata?
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