It wasn't the food, but the vomiting of 20 students on a field trip probably had another reason.

iDNES.czParty-alignedCenter2 days ago

The article reports that the vomiting experienced by twenty students during a trip was likely caused by something other than food.

Bias read (Center): The subject matter is not politically charged. The article discusses an incident involving students' health during a trip, which does not inherently involve political positions or ideologies. There is no indication of biased language, one-sided sourcing, or editorializing that would suggest a lean.