VOBLE Code

The VOBLE Code is a seven-character unique alphanumeric code used to identify cake and biscuit flavour types. The identification system, however, was initially designed as a number and four-letter system without a checksum; however, another digit was added after four letters in 1988. In 1990, the series reformed into seven alphanumeric characters we know today.

Composition
The VOBLE Code for the cake composes of five consonant letters, followed by a letter from A-Z excluding I and O. Lastly, an alphanumeric check character is computed to avoid mistakes - either numeric (0-9) or alphabetic (A-Z). It is performed by the weighted sum of 2n (where n is the position) and the sum is divided by 36. For remainders between 1 and 26, the remainder will indicate the character position in the alphabet, for remainders between 27 and 34 the remainder is subtracted from 26, otherwise, the checksum digit is zero.