Do plastic utensils need to be separate for dairy and meat? (Like glass which cannot become dairy or meat)
Plastic utensils may not be used from milk and meat as they do absorb, and they are not like glass. In fact there are some poskim that say that for pesach plastic cannot even be kashered!
Beer Moshe 2-53, Chelkas Yackov Y:D45-1, Halachos of Pesach R’ Eider in the name of R’ Moshe Feinstein Zt”l, Tzitz Eliezer 4-6, MInchas Yitzchok 3-67.