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Feb 13, 2026 - Foods

ALS-decision specifies calculation of the largest surface area for cans and bottles

The requirements of the Food Information Regulation (FIR) regarding the minimum font sizes of mandatory labeling information are clearly regulated – however, their practical implementation repeatedly raises questions. One of the key factors for the x-height to be adhered to is the so-called "largest surface area" of a product.

At its 125th meeting, the Working Group of Food Chemistry Experts (ALS) published a clarification regarding (almost) cylindrical packaging such as cans or bottles. According to this, the largest surface area is calculated based on the lateral surface – i.e., height × circumference of the packaging. Lids, bottoms, edges, and additionally necks and shoulders for bottles are not taken into account.

Relevance for practice
The precise determination of the largest surface area is of central importance to manufacturers because the permissible minimum font size of mandatory information directly depends on this. Incorrect calculations can lead to objections during official inspections.

Therefore, especially for innovative packaging shapes or design variants, a careful legal and analytical examination of the labeling is recommended.

Labeling examination in the Tentamus laboratories
As part of the Tentamus Group, we regularly conduct comprehensive labeling examinations in our laboratories – quickly, reliably, and based on current legal requirements and official interpretations.

Our experts support you in the legally compliant design of your product labeling and are happy to assist you with any questions you may have.

Source: www.bvl.bund.de/als