[7] He began his commercial apprenticeship in Vevey, where in 1856 he established the candle-making business Frères Peter, but soon he diversified his business to include chocolate fabrication,[6] as demand for his candles fell, owing to the introduction of affordable kerosene lamps.

It was not until he enlisted the cooperation of Henri Nestlé, then a baby-food manufacturer who had invented a milk-condensation process, that finally, in 1875, after seven years of effort, he was able to bring the product onto the market.

However, it is only after many years of fine-tuning that the original formula was developed and, in 1887, the Gala Peter brand was finally launched.

It is proof of the value they attribute to my creation, and all of them, after unsuccessful attempts, have had to give it up, and I do not know, at the present time, any competition for my product[9]Daniel Peter also launched the Delta Peter brand, which consisted of milk and cocoa powder that could be added to water to make a chocolate drink.

Peter used a triangular packaging, with each individual triangle of pressed powder to be used for one cup.