Stale bread will not make you sick. Chefs use it in recipes for croutons, breadcrumbs, etc. as long as there is no mold. Stale just means it's lost it's moisture. If it tastes OK to you, then eat up! = ) twofunnyboxers Â· 10 years ago.
Color. While knowing when to harvest Concord grapes is more about taste than color, Concord grapes will turn a telltale darker shade two to three weeks before peak harvest. The color can vary depending on where it is grown, with the standard deep blue-purple color slightly lighter in colder areas and darker in warmer climates.
Concord and Niagara grapes are more perishable, due to high sugar content, than the California type grapes sold through grocery stores. Concord and Niagara grape skins are much softer. They need to be handled with care to keep skins from splitting. We do our best during harvest to pick and handle the grapes with care.