What's that little 'e' symbol?

by Yael Miller on 09/17/2008 | 2 Minute Read

Editorial photograph

As a packaging designer I come across lots of different packaging from around the world. Most of the time, I design packaging for US-based companies, which have their packaging standards. The FDA and USDA regulate food packaging guidelines relating to nutrition, net weight and product claims. The standards in Europe are less familiar to me. One device I've seen on packaged products is a little 'e' symbol alongside the net weight statement. I never knew what it stood for and was curious. I finally did discover its name and purpose.

It's called the Estimated Sign.

(from Wikipedia)

  • the average quantity of product in a batch of prepackages shall not be less than the nominal quantity stated on the label;
  • the proportion of prepackages having a negative error greater than
  • the tolerable negative error shall be sufficiently small for batches of
  • prepackages to satisfy the requirements of the official reference test
  • as specified in legislation;
  • no prepackage having a negative error greater than twice the tolerable negative error may bear the estimated sign.

The estimated sign is placed either before or after the net weight on European packaging. I don't believe there is a consistent location for it, since it's placed on either side for no apparent reason. The European net weight in grams, milliliters or liters only. Ounces are not generally stated, but are sometimes included alongside the net grams.


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