One Food Label for Glass, Plastic and Steel? Test First
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One food label may work on glass, plastic and stainless steel, but each surface needs its own trial. Passing on a smooth glass jar does not establish adhesion or easy removal on textured plastic or brushed steel.
Build a material test set
- Select representative glass jars, plastic tubs and stainless steel pans.
- Record the surface finish and condition, including scratches or texture.
- Apply the same candidate according to instructions and record temperature and moisture.
- Use the same pen and required entries, then follow each container’s normal use and cleaning route.
Keep results by surface
For each material, record legibility, missing labels, lifted edges, fragments, adhesive and removal time. Avoid one combined average that hides a repeated problem on the most-used plastic tub.
Distinguish the finish from the material
Two plastic tubs can have different textures, and two steel pans can have different surface conditions. If a candidate fails, show the supplier the actual container or a clear photo and request a relevant specification.
Standardize with a written exception list
Approve shared stock for the combinations that pass and identify any exceptions at the relevant station. Recheck when a new container type enters service. Simpler purchasing is useful only if the shared roll also prevents relabeling and cleanup work.