Peppercorn is one of several food crafting materials you can get in to make meals for your character. Many meals made with this common spice can give you strong buffs for upcoming battles or help heal you in dangerous moments. Some Peppercorn seeds can be collected from a specific vendor if you want to start growing this material as well.
Any item is easier to farm when you have a vehicle like the Motorcycle in to travel faster across map regions. Most meal recipe ingredients like Peppercorn can be found in Supply Crates you open in the world, but usually in small amounts. You can't rely on Crates to give you exactly the food items you want, so you'll have to find another way to harvest Peppercorn.
In Once Human, valuable weapon and armor blueprints can be found in Mystical Crates. Here are their locations in Dayton Wetlands & Broken Delta.
The most consistent way to get Peppercorn and Peppercorn Seeds in is to buy them from the vendor Lucyin Blackfell. The area where this NPC resides is a little difficult to reach, but not if you avoid the majority of enemies who would interrupt your exploration. Blackfell is considered a Level 43 region, so your character needs to be prepared to deal with enemies of this strength or steer clear of them.
Lucy sells Peppercorn for 50 Energy Links each and one Peppercorn Seed for 1,000 Energy Links. A maximum of three Peppercorns can be bought during a single day, but you can only get three Peppercorn Seeds throughout the whole in-game week. Like any other food item bought in , you can't eat the basic ingredient part bought from Lucy, only the meal you make with it.
Seeds of Peppercorn can be planted at your base to grow more Peppercorn and Seeds for a perpetual farm for the item. If you have a Planter Box, you can place Peppercorn Seeds in one and fertilize them often to help new plants grow faster. This process takes a few hours, but the more you nurture a growing Peppercorn plant, the more likely it will drop Seeds you can
Read more on screenrant.com