Homemade glutinous rice wine can generally be kept at room temperature for 30 days, the refrigerator can be kept for 60 days. It is recommended that you eat it as soon as possible after making it, and it will not taste good if you leave it for a long time.
The reason you shouldn't keep it at room temperature for too long is because the original rice wine will continue to ferment if you keep it for a long time, which means that the alcohol content will increase and become more and more potent. It will spoil if left for more than 60 days. Sticky rice wine will have a white foamy object on the surface if it spoils, so as long as there is no such thing or the odor is not sour, you can drink it. It is important to note that after opening the rice wine, you need to drink it within 3 to 5 days to avoid the invasion of bacteria and microorganisms in the air, which can cause deterioration of the rice wine and the warming of the alcohol.
Mash is best preserved in glass bottles, stainless steel or stable metal containers are fine, preferably not plastic bottles.