14 Completely Insane Dishes from History
ByAnna Hartley,
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Fish Bladder Jelly
If you weren't very enthusiastic to try rotten Medlar on your toast, perhaps you can be tempted with sweet fish bladder jelly? Those Victorians were at it again with this bizarre dish made from the swim bladder of the sturgeon fish. The organ, used by fish to regulate their buoyancy in water, contains a form of collagen called isinglass, which is used like gelatin to thicken liquid. Isinglass was once widely used to make jellies and other foodstuffs, and today it's still used in the refining process of some beer and wine, notably Guinness stout.
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