A 1000-page cookbook linked to the Australian Culinary Archive will not be finished in time for the opening of the Powerhouse museum next month. The project has been in the works for years, with researchers and editors pulling together material from the archive. Getting a volume of that size across the line proved harder than planned, and the deadline has now slipped past the launch. Visitors flocking to the new museum when its doors open will therefore find the publication missing from the offering. Books on this scale involve years of recipe testing and photography, all of which can push completion dates back. The Australian Culinary Archive holds material documenting the country's food history, and the book was meant to bring much of it into print. No revised release date for the cookbook has been announced.