Baked products were based on the amount of moisture, 2 types.
1. Type with high humidity, such as bread, cake doughnuts. Packaging.
2. Type with low humidity, such as cookies and crackers.
Packaging to prevent damage the quality of the tiger due from various causes, such as. Changes to moisture, such as bread is too dry when the moisture content decreased or cookie will not frame when humidity is near. The oxidation reaction is a reaction between oxygen in the air. The elements in food, especially fat products, such as the rancid rancid smell of donuts.