Weed Control. ... Insect Control. ... Algae Control. Is cornmeal supposed to have black specks in it? Cornmeal and cornmeal productsmay naturally have black specks. These are bits of the pericarp, the skin around the corn kernel, particularly the part where it attaches to the cob. ......
This means there is an opportunity to extend the shelf life of cornmeal; if it's stored under good conditions, cornmeal will keep forabout one year. How long after expiration date can you use cornbread mix? In Summary. When store-bought, boxed cornbread mix remains in its box, it will ...