Kelp is a plantable underwater plant block added to Minecraft in Java Edition 1.13 and Bedrock Edition 1.4.0.
Smelting it in a furnace, smoker, or campfire yields dried kelp. Players can eat dried kelp very fast, faster than other foods. 9 dried kelp can be crafted into a dried kelp block which can be used as a source of fuel.
Wandering traders will sell kelp in exchange for emeralds.
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