Barley Flour is a processed item that comes from Barley and is used in many food recipes in Valheim, beneficial to your health or stamina.
This ingredient comes in handy later when you need to craft better food items and be a big help when a large stock of them is created.
To make a lot of Barley Flour, you will need Barley which can be farmed in the Plains biome and later on cultivated land.
For a guide on Barley Farming, check out our Valheim Barley Farming Guide
What You Need to Make Barley Flour?
To make Barley Flour, you will first need to get Barley from the Plains biome or by farming Barley that you already have collected.
You will also need to build a Windmill unlocked after you have defeated the Moder (fourth boss) and have crafted the Artisan Table.
The requirement of defeating Moder makes Barley Flour quite the late or endgame food ingredient but pays off later when you have an abundant supply.
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Processing Barley Flour
A Windmill can have a capacity of 50 Barley placed inside it and will continue to process this until it reaches 20 Barley Flour.
Unless you empty the Windmill, the Barley Flour stack will be kept inside and only released once it reaches 20 stacks.
Leaving 50 Barley will result in the Windmill emptying two stacks of 20 Barley flour, and the remaining amount of 10 Barley will be released when finished.
To have Barley processed into Barley Flour, head to the rear side of the Windmill and interact with the input area to place Barley.
A good Barley Flour location for production would be in the Plains biome since you can farm Barley and continuously process it.