What medicine does black-skinned sugarcane use to sweeten with ash?

Use lime, sodium hydroxide, potassium hydroxide, etc. Lime, sodium hydroxide, potassium hydroxide, etc. Used for black-skinned sugarcane. Their function is to neutralize the acidic substances on the surface of the peel and promote the penetration of sugar into the surface of the peel. This can increase the sugar content of the peel, improve the sweetness of sugarcane, and also help to remove impurities and dirt on the peel, and improve the luster and appreciation of the peel. Black-skinned sugarcane is a late-maturing variety, named after its causal skin is dark or purple-black.