Maybe this is not really a bug, but the description for alternative fuel is not correct. It mentions “kelp block”, but said block doesn’t exist. This may cause confusion for newer players.

Steps to reproduce:

1. Open Minecraft
2. Go to the achievements menu
3. Scroll down to Alternative fuel
4. Read it’s summary

Observed results:
Summary says: Power a furnace with a kelp block

Expected results:
Summary says: Power a furnace with a dried kelp block