https://www.gamintraveler.com/2026/03/01/why-you-cant-really-find-american-peanut-butter-in-spain-and-most-of-europe/

The problem is that much of what Spain sells as peanut butter is built around the European expectation:

• simpler ingredients

• fewer sweeteners

• “natural” separation accepted as normal

The EU keeps strict maximum levels for contaminants in foods, including aflatoxins. Commission Regulation (EU) 2023/915 sets tight contaminant limits, and the EU’s own 2023 summary notes that maximum levels are set at strict levels considered reasonably achievable.

https://en.wikipedia.org/wiki/Aflatoxin

Aflatoxins are various poisonous carcinogens and mutagens that are produced by certain molds, especially Aspergillus species such as Aspergillus flavus and Aspergillus parasiticus.