The purpose of a 'String' is to to be used in combination with other resources.
This is not so much a recipe as a series of steps. Follow the steps by number.
- Find, forage and place two hemp stalks.
- Open the craft menu and select the two hemp stalks, clicking 'Create Item'.
- Find 'Fresh Hemp' in your Backpack and drop it.
- Open the craft menu and select the 'Fresh Hemp', clicking 'Process Ingredients'.
- Wait until the green, 'Drying Hemp', turns into brown 'Hemp'.
- Equip a 'Crafting Knife' and use it on the 'Hemp'.