It's found in the plant itself and the brown oil inside a nut's shell. It can cause burns, itches, and blisters, which is why unprocessed cashews are considered dangerous to eat or touch.

Hazelnuts are globe-shaped or oval nuts up to 2cm/1in long with a hard brown shell. They grow in most parts of Britain, but cobnuts (a type of wild hazelnut) are particular to Kent. Most of the ...

Gardeners looking for an eco-friendly way to keep weeds at bay are being urged to save their nut shells instead of tossing them in the bin. Peanut, pistachio, and walnut shells can be repurposed ...

Keep warm with a tea towel while you peel away the hard outer shell and the softer inner brown skin (warm nuts peel more easily than cold ones). For a faster method, slit the rounded shell of the ...