275283 Wed Dec 08 11:23:27 -0800 2004 1 31 Home Cooking 0 1449805 How long does homemade mayonnaise last if it is refrigerated. If I were to bottle and seal it, how long do you think it might last? Thanks! Wed Dec 08 11:23:27 -0800 2004 0 owen 1 1449815 Typically, a couple of weeks. Bear in mind that, when you use lemon juice, the half-life of the zestiness that comes from citrus juices is very short -- as in less than a day (that's why so many recipes insist on freshly squeezed citrus juices). So things that depending on zestiness from citrus, like many mayonnaise recipes, will not be as zesty if kept for very long. So keeping and top-tastiness are separate matters, as it were. As the saying goes, you can have it all, just not at the same time.... Wed Dec 08 12:17:05 -0800 2004 1449805 0 Karl S.