What constitutes good Key Lime juice? The answer is simple: one that tastes like real Key Lime juice and one that is from the true species of Key Lime, citrus aurantifolia. The flavor is one-of-a-kind, tart, luscious and capable of making the best Key Lime pie. The tiny Ovid little fruit produces the best Key Lime pie anywhere. Ours has what is called a high "brick" – the flavor is oh-so wonderful! Joyce LaFray's special formula makes the best Key Lime pie. 16 oz.