Avoiding pork, shellfish, and other obviously prohibited things is a good start in keeping kosher but what exactly does keeping Biblically kosher include? What passages of Scripture should we examine when considering what to eat and what not to eat? Are there commandments regarding how to prepare food? What about when (or when not) to prepare food? Is that part of keeping kosher?
Aaron Eby, a highly-regarded Messianic author and teacher, has put together an examination of what Scripture has to say about food. Originally an article 23 pages long in PDF format, it has been turned into a book entitled Biblically Kosher. It does pose some challenging questions for those seeking to follow G-d's commandments regarding food.