Sushi Prep Counters: Small Pads, Cold Hands and a Two-Hour Change

In a sushi kitchen the pad is rarely the star of the bench, but it sits at the point where two expensive things meet: a tuna loin that costs more per kilo than most of the menu, and a hygiene standard that leaves no room for a wet tray. The volumes are small — a few kilos a day, not a few hundred — and that is exactly why pad choice here is about control rather than capacity.

Tuna blocks, salmon fillets and how much liquid actually appears

A frozen tuna loin of 2 to 4 kg thawed at 0 to 2 °C releases roughly 3 to 5 percent of its weight as drip over 18 to 24 hours, so 80 to 200 ml from a single loin. Salmon portions are wetter at the surface, and a 5 kg box of fillets can leave 250 to 350 ml in the tray by the time it is workable. Neither number is large, but both arrive slowly, which means a pad has to keep wicking for a full day rather than absorb a rush.

For a 400 × 300 mm prep tray, a 380 × 280 mm pad with a white top sheet is the sensible default. White matters here: a coloured pad makes it harder to see the first pink blush that tells you a loin is releasing beyond the usual, and that blush is often the earliest sign of a temperature problem rather than a pad problem.

Two hours, not six

Sashimi prep runs on a short cycle. Product comes out of the chiller, sits on the bench for portioning, and goes back within the hour. A pad in that environment is handling surface seepage, not a thaw, and it should be changed every two hours in a busy counter or every three in a quieter one. The reason is not saturation but contact: a pad that has been under a loin at 4 °C for three hours is a wet surface in direct contact with a product that will be eaten raw.

Change the pad at the same time as the board is scraped and sanitised, and the task joins an existing routine instead of becoming an extra one nobody remembers. Pads should be discarded, not wrung out and reused, and the bin should be one that gets emptied before service rather than after.

Perforated inserts, cutting boards and where the pad must not go

The best arrangement for a thawing loin is a perforated insert sitting 15 mm above the pad inside the tray. Liquid falls through, the product never touches the wet layer, and the loin can be lifted out without peeling a soggy sheet off its base. If there is no insert, put the pad flat in the base and the loin on a shallow rack above it; a 10 mm rack is enough.

What not to do: do not put a pad under a cutting board to stop it slipping. Boards need a damp cloth or a rubber mat, and a pad will compress, tear and leave fibres on the bench within a shift. Do not lay a pad on the bench itself to catch trimmings either — trimmings belong in a scrap tray, and a pad covered in rice, nori and fish fragments is a hygiene problem dressed as housekeeping.

Temperature discipline carries more weight than any absorbent. A 2 kg tuna block needs 18 to 24 hours at 0 to 2 °C; pulling it forward with a warmer room or a water bath costs texture and creates a risk that a pad cannot address. If the loin is still hard in the centre at service, the answer is a longer chill, not a different pad.

For teams setting up a raw-fish station from scratch, the small-format absorbent pads at florpoly.com cover the tray sizes used in sashimi prep, with white top sheets that show a colour change early.