Did you know that? What packaging symbols really mean

Pictograms and symbols are understood in every language and are therefore particularly used in international goods trade. Nevertheless, there is no universally valid labelling system for instructions for use. So let us introduce you to the most customary pictograms on the following packaging examples.

Pictograms for food packaging suited for micro-wave use are not standardised. Most symbols are complemented by a temperature stating the maximum temperature for heating possible because maximum temperature and wattage vary from material to material. While polypropylene starts melting at 120 °C, fats can take up to 200 °C.  

A snowflake is used to label food suitable for deep freezing. This food can be stored in a deep freeze. Without a temperature indication, however, the minimum temperature below zero is unknown. Manufacturers use various symbols for describing their products’ resistance to cold. In general and in view of energy efficiency a constant temperature of -16°C to -18°C in the freezer is regarded as ideal for storing food.

The symbols for usage instructions printed on packaging are standardised and governed by ISO R/780 (international) or DIN 55 402 (Germany). Due to this standardisation there is little scope for design and variations in contrast to the aforementioned symbols. This helps to avoid uncertainties in the international movement of goods.

Goods bearing this umbrella symbol must be protected from air humidity and moisture. They should always be covered by tarpaulin during storage.