Five Grains [Part 1]:

• Processing;
• Four Parts;
• Oats, barley, wheat, spelt, rye;
• Four berachos - ha'adamah, shehakol, hamotzi, mezonos;
• Wheat germ;
• Ma'asei kedairah.

See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠