How to choose the kind of coffee defective beans

Because the drying is not complete, or in the transportation, storage process is too wet, and grow cyan, white mold, sometimes make beans stick together, if not remove these moldy beans, will produce mold smell.

IV. Fermented beans

There are two main categories: one is formed by soaking coffee in the fermentation tank for too long during washing, and is contaminated by the water washing coffee beans; the other is stacked in the warehouse, thus attaching bacteria and the surface of the beans becomes mottled. Fermented beans are difficult to distinguish from the appearance, so special attention should be paid to hand selection. Fermented beans produce a rancid smell if mixed with coffee.

V. Dead beans

Dead beans.

Beans with abnormal results. The color is not easily changed by baking, so it is easy to distinguish. The taste is bland, as harmful as silver skin, and will become the source of odor.

VI. Unripe beans

green bean

Beans that are picked before they are ripe have a fishy, nauseating taste. Leaving coffee beans for years is a countermeasure against these immature beans.

VII. Shell beans

shell bean

resulting from poor drying or hybridization; beans cracked at the center line and turned inside out like shells. Shell beans will cause uneven baking and are prone to fire when baked deeply.

VIII. Worm-eaten beans

bean worm

Moth in the coffee fruit ripening red invasion eggs, larvae nibble coffee fruit growth, beans will leave traces of moth infestation. Worm-eaten beans can cause coffee to be cloudy and sometimes have a strange smell.

Nine, black beans

black beans

beans that mature early and lose their status and ferment and blacken after prolonged contact with the ground. Easy to remove by manual selection. Coffee brewed with black beans will have a rancid smell and turbidity.

X. Coco

cocoa

The reason of its formation is that the pulp remains and is not fully shelled due to natural drying method. With iodine, earth and other smells, will occur similar to ammonia odor. "Coco" means "dung" in Portugal