After opening, how long is the almond milk safe to drink? September 08, 2020 00:36 Updated The Organic Protein Almond Milk should be consumed within 2 hours of opening if it is not refrigerated. After opening and if refrigerated, they should be consumed within 7 days. Related articles What is the shelf life of Orgain ready-to-drink shakes? What is Shop Pay? After opening, how long is the protein powder safe to consume? Are your products suitable for a keto diet?