This is in accordance with the Icelandic Health Authority's report, which claims that the spinach wasn't cleaned at the restaurant. The spinach is shipped directly to the country without being cleaned prior. RÚV's latest report on the matter claims the baby mouse was a young house mouse, weighing six grams.
According to Óskar Ísfeld from the Health Authority, the spinach was shipped in a 500-gram plastic packaging. Greens such as spinach are allowed to be shipped without any cleaning, although the restaurants serving them must wash them before serving.
Innes, the manufacturer of the spinach used in the salad, had already called in every other spinach products sold at a similar time period. All the spinach from the restaurant was removed as well.
Einar Ásgeirsson, one of Fresco's owners, had previously commented on the matter, claiming that the dead mouse's placement in the salad was deliberate. "The salad is washed, placed into an ice bath, and repackaged several times. The mouse came into the salad because of a person who wanted to do us harm."