The red berry seed is a collectible item found by either consuming Red Berries or by picking said berries from small red berry bushes on the ground in grassy and heavily forested biomes.
Red berry seeds can be grown in the ground, in Large Planter Boxes, or in Small Planter Boxes and watered for a higher yield from red berry bushes, which will provide more red berries and red berry seeds when harvested.
The red berries produced as a result of harvesting the seed can then be used in the mixing table to produce a variety of Anti-Rad Teas, Wood Teas, Healing Teas, and Max Health Teas. Due to their flexibility in use, they remain a valuable component till the very end of the wipe.
Once you produce several basic teas, you can combine 4 of the same type to create an advanced tea. Then you may make a pure tea by combining 4 of the advanced teas.
For even more on tea creation, check out our Mixing Table guide!