the broken walnut turned out to be rotten inside. shell fragments of nuts. moldy half of a nut. the problem of keeping food fresh

agriculture background bad black brain brown close cracked decayed difference dry eaten food gardening group half halved healthy infected infection inside kernel macro membrance mildew mold mould mouldy musty natural nature nut nutrition nutshell nutty object open organic over putrefaction putrefy raw rotten shell snack tainted top ugly unhealthy walnut worm