1, the first will be fermented, fermentation process if you add a few drops of yogurt will help speed up the fermentation rate.

2, the low temperature can be appropriate to extend the fermentation time, the expired milk will be opened, placed in a clean container, in the shed for about a week, it can be naturally fermented.

3, expired milk can not be used directly to water flowers, because the milk is rich in substances will release lactic acid, will change the nature of the soil itself, increasing the acidity of the soil.

4, the use of expired milk to water flowers will appear a more unpleasant smell.

5, the use of expired milk to water flowers must make the milk fully deteriorated, otherwise it will also attract insects and easy mold, the loss is not worth it.

Expired milk can be used as a flower fertilizer, milk is the main component of water, in addition also contains protein, fat and other substances and calcium, potassium, iron, manganese and other minerals, protein, fat and other substances belong to nitrogen-containing macromolecules, which must be decomposed into small molecules of nitrogen in order to be absorbed directly by plants. Calcium, potassium, iron, manganese and other minerals can be directly absorbed and utilized by the crop.

Expired milk watering notes:

1, expired milk if not after fermentation, can not directly water flowers. Milk only after the drinking period, but has not been fully composted, rotting on the use of the milk, the heat of the fermentation of the milk will burn the roots of the plant, so it can not be used. So to collect the expired milk into a large bottle, cover the lid tightly, after some time to open once, so that the gas produced to escape, so as not to gas the bottle broken, and so 2 to 3 months later, the milk fermentation has been complete, and then water to use it is safe.

2, milk fermentation has a stench, very unpleasant, watered milk potting soil is very easy on the mold, easy to produce mold on the root of plants is not good, such as orchids. Easy to attract small insects, parasitic worms.

3, the concentration of milk is not good to master, especially the novice, pouring milk will cause bad consequences.