Minecraft wiki entry for Achievement_guide, associated text: Find a village, if you see a farm and farmer villager, see what their trades are, you can sell wheat, potato, carrot, or beetroot depending on what the farmer offers. You may need an extra farm if you can't find these crops already growing in the village. You can easily get a ton of emeralds using this method, up to 12 per day for each farmer villager. You can also trade with a butcher villager for 7 raw pork chops for one emerald.