A buyer orders 750ml rectangular containers with snap-on lids. The shipment arrives. The containers are 720ml, the gauge is thinner than expected, and the lids fit but are a different style.
The supplier says the buyer never specified. The buyer says it was obvious. Both are partly right, because there was no spec sheet.
A one-page spec sheet solves this. It takes twenty minutes to write and prevents months of back and forth.
A useful spec sheet has eight items. Each one is short and specific.
The first is dimensions. Write the inner length, width, and depth in millimeters, plus the top outer dimension. Inner dimensions decide how much food fits. Outer dimensions decide how containers stack and fit in cartons.
The second is capacity. State the nominal volume in milliliters or ounces, and note the practical fill volume. A 750ml container often holds 650 to 700ml of food after leaving headspace.
The third is gauge or thickness. Write the micron range, for example 45 to 50 microns, and state the acceptable tolerance. "Standard thickness" is not a specification.
The fourth is material. State food-grade aluminum and the applicable standard, such as GB4806.9-2023 or the equivalent for your market. If a coating is used, state the coating type.
The fifth is lid type. Specify snap-on plastic, aluminum foil, paperboard, or clear dome. State whether the lid is included in the unit price or quoted separately. Confirm the lid is matched to the container.
The sixth is packaging. Write units per carton, carton dimensions, whether a poly bag is used, and whether cartons are palletized. Packaging affects freight cost and damage rate.
The seventh is minimum order quantity and mixing rules. State the minimum per size and whether mixed sizes are allowed in one order.
The eighth is compliance documents. List what you need: food contact declaration, migration test report if required, certificate of origin, and labeling requirements.
Written dimensions help. Photos with a ruler help more. If you have an approved sample, keep it and reference it in the spec sheet as the golden sample.
When a reorder arrives, compare it with the golden sample. If the gauge or lid fit differs, you have a physical reference, not just a description.
Do not assume the supplier has it on file. Staff changes, systems change, and details get lost. Attach the spec sheet to every purchase order and every reorder.
This also helps your own team. Warehouse staff can check incoming shipments against the same document.
If a shipment does not match the spec sheet, photograph the difference beside a ruler or the golden sample. Send the photos with the spec sheet and a specific request: replacement, credit, or correction on the next order.
A written spec sheet makes this conversation short. Without one, it becomes a debate about memory.
We provide a simple spec sheet template for new buyers. We confirm gauge, lid type, and packaging in writing before production. We keep your approved specifications on file for reorders. We retain samples across batches for comparison. And we ship lids matched to containers so the lid item is never in question.
If you do not have a spec sheet yet, send us your size list and use case. We will draft one for your review.
"Container: rectangular, inner 175 x 120 x 45mm, nominal 750ml, practical fill 680ml. Gauge: 45 to 50 microns, tolerance plus or minus 3 microns. Material: food-grade aluminum, GB4806.9-2023 compliant. Lid: snap-on plastic, matched to container, included in unit price. Packaging: 100 units per carton, poly bag inside, 40 cartons per pallet. MOQ: one case per size, mixed sizes allowed. Documents: food contact declaration and certificate of origin."
Eight lines. It covers everything that usually causes a dispute.
