There are two ways to judge whether durian is mature: one is to smell it. Immature durian generally smells like grass, and mature durian will give off a unique durian aroma. Second, pinch the shell. If the spikes of durian shell are hard, it means immature; if soft, it means mature.

How can you tell that durian is ripe without opening your mouth?

If the smell of durian is alcoholic, it means that durian has gone bad. It is best not to buy it or eat it.

When you buy durian, you can observe its conical thorns. High-quality durian ears are thick and thin. If the spikes are thin and dense, it means that the pulp of durian may be thin and thick.

If the opened durian is not ripe, it can be put together with apples, bananas, kiwis and other fruits, or it can be sealed and packaged and put into a rice jar to wait for maturity.