BerlinWalk tool
German law makes a counter tell you about fourteen allergen categories, and two of them turn up in far more Berlin food than anyone expects. Pick yours, see where they sit across twenty three things you actually get handed in this city, then take the German sentence with you.
These are the exact categories Annex II of the EU food information regulation makes compulsory, in the wording a German menu uses. Peanuts and tree nuts are two separate categories in law, so pick both if you react to both.
Out of the twenty three Berlin dishes and drinks in this tool, this is how many each category shows up in. The two long bars are the ones visitors never see coming.
Read the German line out. Then use the second one, because it is the one that turns a shrug into a document.