Sandwich and salad prep table guide: rails, pans, boards and food safety

How a prep table keeps the rail cold

The base is a normal refrigerated cabinet holding roughly +2 to +8 °C. Above it, a row of food pans sits in a refrigerated well. Cold air from the base is circulated around and over the pans, or the well itself is cooled. Because the pans are open on top, the food surface is exposed to warm room air, so the top centimetre warms faster than the rest of the pan.

That is why lids matter. An insulated hinged lid closed during lulls and overnight lets the rail recover. Leaving it up all day, especially in a hot open kitchen, can push the top layer of food above safe chilled temperatures.

Pan sizes and how many you need

Rails take gastronorm fractions. Count one pan for each ingredient on the menu, then add duplicates for the fastest movers. A larger 'mega-top' rail holds more pans in a second row for menus with many toppings.

Pan depth: shallow is safer

Pans come in several depths, commonly around 65, 100 and 150 mm. Deep pans hold more, but the food at the bottom stays cold while the top warms, and staff tend to top up rather than replace. Shallower pans filled to below the rim, swapped for fresh pans from the base during service, keep the whole contents nearer the cabinet temperature. Never mound food above the pan rim: it sits outside the cold air flow entirely.

Cutting board and work surface

• A full-length removable polyethylene board lets staff cut and assemble in front of the rail; check it lifts out for washing.
• Board depth sets how much assembly space there is. Wraps and large sandwiches need more depth than salads.
• A raised rear upstand stops sauces running behind the unit.
• Some kitchens prefer a separate colour-coded board for raw or allergen items.

The base: doors or drawers

The cabinet below holds the next pans of each ingredient. Doors with shelves suit a mix of pan sizes and containers; drawers suit fast-paced counters where staff swap pans constantly. Check how many full-size GN pans fit, because the base usually needs to hold at least one full refill of the rail.

Open kitchens and Indian summers

Many sandwich and bowl counters face the customer and sit under strong lighting, in a space that may not be air-conditioned to kitchen standards. Lights, sun and warm air from the street all load the open rail. Ask the supplier for the rated ambient at which the rail itself holds temperature, not just the cabinet below, and keep the unit out of direct sunlight and away from toasters and ovens.

Food safety routine

• Check pan contents with a probe thermometer, not just the cabinet display; common guidance is chilled food at 5 °C or below.
• Close the lid whenever the line is quiet, and move pans into the base or a reach-in overnight.
• Replace pans with fresh ones rather than topping up old food.
• Keep raw items, such as uncooked eggs or meat, out of the rail.
• Clean the rail well daily; spilled food in the well breeds bacteria and blocks airflow.

Choosing the length

Prep tables are sold in lengths that roughly match two, three or four base sections. Work out the length from the menu and the staffing, not the space available. One person assembling needs every ingredient within a single arm's sweep; if the rail is so long that they walk along it, a second person or a second table may work better. For counters with two people working side by side, duplicate the fastest-moving pans at each end so they do not reach across each other. Leave space on the counter run for a toaster or press, but not right against the rail.

Questions to ask the supplier

• How many pans of each size does the rail take, and can the layout be changed?
• At what room temperature does the rail itself hold food at 5 °C or below with the lid open?
• Is the lid insulated, and does it stay open on its own?
• Does the cutting board lift out, and are replacement boards available?
• How many full-size GN pans fit in the base for refills?