Renewable resource

A renewable resource (as opposed to a non-renewable, or finite, resource) is a resource that can be recreated indefinitely in survival without exploiting glitches or using commands. While running out of resources isn't likely to be a factor due to theoretically infinite (and still quite vast in practice) map generation, this is a list of resources that can be produced over and over without having to explore for more. However, running out of resources can be a bigger issue on superflat worlds, where resources are less plentiful, in PvP maps, where one would like to obtain resources without having to conquer more land, or simply if the map size is limited.

The listed fully renewable craftable items are items that can be crafted, smelted, or brewed using only renewable resources. For example, cookies are renewable as they only require wheat and cocoa beans that can be regrown infinitely, while TNT isn't because it requires sand, which is not renewable.

Anything that is dropped by an animal or most monsters, is renewable because more mobs of the same kind can spawn and be killed again for more loot. The exceptions are the Wither (requires non renewable soul sand to spawn), nor several enemies that spawn only in specific places: Elder guardian, (spawns three per ocean monument) Illagers (only spawns as part of the woodland mansion), and the shulker, (only spawns as part of end cities). However, monster drops are not renewable in peaceful difficulty, because the monsters do not spawn.

Brief introduction to methods
There are some main methods to get renewable resources and some item-specific methods. Item-specific methods vary from building a cobblestone generator to harvesting obsidian from portals, so it's very important sometimes to choose non-renewable, but easier and/or safer ways to get them. The methods are listed in increasing difficulty order:

Difficulties: The first three methods are the easiest. They are especially worth using when the player wants to avoid risk such as while playing in hardcore mode. The fourth method is normally used to get something that is only possible to get by killing monsters such as blaze rods, arrows, or bones. The last two methods are worth using only when there are no other practical choices, as the player will spend a lot of time executing the method before getting what they need.
 * Farming - grow it on the dirt or farmland block, breed using renewable resources, etc. (Difficulty 1)
 * Craft it using only renewable resource(s) (1)
 * Buy it from villagers (2)
 * Get it as a guaranteed or probable drop after a mob's death (3)
 * Get it as a drop after a mob's death (4)
 * Find it while fishing (5)
 * 1) Difficulty 1 is the easiest. Items from this difficulty IS obtainable in peaceful.

Rare drops
These items are considered rare drops or are obtained by a mob dying in a unique way. For some of these items, this is the only way to even obtain them whatsoever. For most of these items, this is the only renewable way to obtain them. But, a few of these items have other renewable methods, such as crafting or trading. This does not include any item the mob picks up after spawning. Mob farms are a good option for obtaining these easily or in large quantities.

Tradable
These items in every other circumstance would not be renewable but are renewable through trading with villagers. This does not include items that can otherwise be renewed through different means.

Bedrock Edition
Generally, all resources are renewable in the same way in both the Bedrock Edition and the Java edition. The exceptions are noted in subsections here.

Renewable
These resources are not renewable in the Java edition but are renewable in the Bedrock Edition.

Legacy Console Edition
Generally, all resources are renewable in the same way in both the Legacy Console Edition and the Java edition. The exceptions are noted in subsections here.

Renewable
These resources are not renewable in the Java edition but are renewable in the Legacy Console Edition.

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