Besides that, multiple cookbooks give you another layer of categorization hierarchy, and you probably need it with that many recipes. See all the NYC limits . Create a new menu plan with that one recipe, save it, close the menu window, and press the toolbar button for Shopping List Cost. Theoretically, about 32,000. The main issue is that NYC stores indexes for the open cookbook in RAM for quick access to recipes, and the indexes get large with 30,000 recipes in a cookbook.
Performance slows with large cookbooks due to processing the indexes.
For most Pentiums with 16MB RAM and plenty of hard drive space, we recommend limiting cookbook size to 5,000 to 10,000 recipes for best performance. With searches, meal planning, and duplicate deletion across cookbooks, there is really no need for one large cookbook. More cookbooks allow better hierarchy in organization as well, since each cookbook can have its own 200 categories. See all the NYC limits . Untag recipes at this time by selecting a group and pressing Untag.