Pad Up, Pad Down or Both: Where the Pad Actually Goes Inside the Tray

Put a pad in the wrong place in a tray and it will still absorb some liquid, which is why the error survives for months. The pad ends up stuck to the product, the tray base stays wet, and someone concludes that pads do not work. Placement is a mechanical question: liquid runs downhill and follows the surface it touches, so the pad has to be where the liquid is, with nothing between the two.

The default: flat in the base, product on top, 10 mm margin

For a static thawing tray in a chiller, the pad goes flat on the tray base with a 10 mm border of pad visible on all four sides. The border is not decoration. It is the wicking edge where liquid enters; a pad trimmed flush to the tray wall has its cut edge pressed against the steel and loses the entry path along that side. If your tray is 400 × 600 mm inside the lip, a 380 × 580 mm pad gives exactly that margin.

Product goes directly on the pad, in a single layer, with 20 to 30 mm between pieces. Stacking is the most common placement error after trimming: two layers of chicken thighs means the upper layer’s drip runs onto the lower layer rather than into the pad, and the lower pieces sit in a pool that the pad never sees. If volume demands stacking, the pad has become the wrong tool and a racked draining tray is the better answer.

When the tray has a raised grid

Some trays come with a perforated false base. Here the pad sits under the grid, on the tray floor, and the product sits on the grid. Liquid falls through the perforations and lands on the pad without the product touching it. This is the best arrangement for fish and for anything with a heavy drip load, because it separates product from the wet layer entirely. Check that the grid sits at least 10 mm above the pad; closer than that and capillary action will pull liquid back up to the product.

Pad on top: only for display, and only briefly

Laying a pad over the product is a display habit borrowed from meat transit packaging. On a counter it can help with bloom and with drip from the upper surface of a large cut, but the pad then sits in the warmest part of the tray, dries at the edges and stops wicking within a couple of hours. Use it as a top sheet only where the display build is short, and change it more often than the base pad, not less. Never wrap a pad around a cut and never use one as a substitute for film on a portioned product.

The combination that works on a busy serve-over is base pad plus a loose top sheet on large whole cuts, with the top sheet changed every two hours and the base pad every four.

Four placement faults and their symptoms

• Pad folded or creased during unwrapping. Symptom: a dry ridge across the pad and a wet strip beside it. Store pads flat, not on edge in a tub.
• Pad larger than the tray, curled up the walls. Symptom: liquid in the tray corners under the curl, product sitting in it. Trim to fit or buy the right footprint.
• Pad under a solid liner. Symptom: nothing absorbs at all and the liner is wet on both sides. The pad must touch the liquid, which means the liner above it must be perforated.
• Pad placed on a sloped display tray without a front-edge solution. Symptom: saturation in an 80 to 120 mm band at the low end. Add a second strip at the front or raise the product on a grid.

One more point on hygiene: placement is also a cross-contamination decision. A pad used under raw chicken stays with that tray. It does not move to a beef tray, and it does not get shaken out and reused. Pads are single-use articles, and the gel core does not survive washing.

Where trays are non-standard, the pad can be specified to the tray rather than the other way round; the cut-to-size and standard footprint options at florpoly.com absorbent pad formats cover most 200 × 300 to 400 × 600 mm kitchen trays.