Barley flakes

Barley flakes are simply rolled or steamed barley, so they carry similar histamine considerations as whole barley.

• Processing — the rolling and steaming process is generally low-risk, but any added flavorings or malt-based ingredients can nudge the concern level up

• Storage — like most grains, barley flakes are best used from a freshly opened pack and stored in a cool, dry place; keeping them in good condition is a straightforward way to minimize any concerns

Using a freshly opened package and eating them plain keeps the risk fairly low.