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.
The three main species of grapes grown around the world are; European (Vitis vinifera), North American (Vitis labrusca, and Vitis rotundifolia), and French hybrids. Some of popular green cultivars are Thompson seedless, sugarone, and calmeria. Red varieties include emperor, red globe, cardinal, and flame seedless.