According to Wine and Spirits, homemade glutinous rice wine can be kept at room temperature for 30 days and in the refrigerator for 60 days. 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 rise and get stronger and stronger. If left for more than 60 days, it will go bad. Sticky rice wine that has gone bad will have a white foamy layer on the surface, so as long as there is no such thing or the odor is not acidic, you can drink it. It should be noted that, after the opening of the rice wine should be back to drink within 3 to 5 days, so as to avoid the invasion of bacteria and microorganisms in the air, causing the deterioration of the rice wine and the heating of the alcohol.