HOW LONG WILL ALMOND MILK LAST? How long it lasts will depend on a variety of factors such as how well you sterilize your equipment, the freshness of your ingredients, and the temperature of your fridge.
If it becomes sour before then, make sure to fully sterilize your equipment before use by running it through the dishwasher or pouring boiling water in your jars (make sure the jars aren’t too cold when you do this or they may crack). Also, make sure to soak your almonds overnight in the fridge rather than at room temperature.