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Quantum satis

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Quantum satis

Quantum satis (abbreviation qs or QS) is a Latin term meaning the amount which is needed. It has its origins as a quantity specification in medicine and pharmacology, where a similar term quantum sufficit has been used (abbreviated Q.S.).[1] Quantum satis is also used in the same function in food regulations and food safety laws in the European Community (EC/EU).

The specification of quantum satis for an ingredient essentially means "Add as much of this ingredient as is needed to achieve the desired result, but not more."

In food safety regulations in the EU it is a catch-all restriction for artificial food ingredients (especially food additives) which are harmless enough to have no specific quantity restriction.

It serves to protect consumers from the addition of excessive and unnecessary amounts of such artificial food additives in their foodstuffs and compels producers to:

For example, European Union directive 94/36/EC[2] (which regulates the use of food colors) explains in Article 2 (7): "In the Annexes to this Directive 'quantum satis' means that no maximum level is specified. However, coloring matters shall be used according to good manufacturing practice at a level not higher than is necessary to achieve the intended purpose and provided that they do not mislead the customer".[3] The words quantum satis are used with reference to a number of substances in the Annexes III and IV to the EU directive 94/36/EC.


  1. ^ E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
  2. ^ European Parliament and Council Directive 94/36/EC of 30 June 1994 on colours for use in foodstuffs, Official Journal of the European Communities No L237 of 10.9.94, pp. 13-27 [1]
  3. ^ Translated and copied from quantum satis on German WorldHeritage
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