When chazal made a gezeira for leather, or for that matter most other gezeiros, that’s it. We don’t second guess chazal with other chumros. For example, ashkanazi chazal made a gezeira on kitnios on Pesach. Potatoes did not come to Europe until the new world was discovered in the 1400’s. As a result, mustard flour was banned since its similar to flour in consistency but not potato starch since chazal never saw potatoes. And we cannot be more machmir on what chazal was originally gozer.
Menu