The Kinder Bueno bar is made in the factories of France and Warsaw, Poland.

As of 2022, a new production facility for the North American market is being constructed in Bloomington, Illinois.

The European Food Safety Authority found the chocolate to be contaminated with high levels of mineral oil aromatic hydrocarbons (MOAH), a likely carcinogen.

[16][17] Hydrocarbon contamination is often caused by grain processing techniques, or is introduced to the food by the product's packaging.

Kinder's parent company Ferrero disagreed with the EFSA finding, and maintained all products contain below the maximum levels for human consumption.