The document introduces OPI moisture cables for advanced grain storage management called grain optimization. Grain optimization allows farmers to precisely control conditions in grain bins to maximize grain quality and profitability. OPI moisture cables monitor moisture, humidity, and temperature in bins to identify localized hotspots and ensure grain is stored at an ideal 2-3°C. This removes guesswork and prevents moisture spoilage, mycotoxins, grade loss, and over-drying. Farmers can also optimize their time spent on grain storage and remotely access bin conditions from any device for added safety.