As an expert sommelier and brewer, I can provide you with some insights on frozen milk and whether it is safe to drink after being defrosted. While I primarily deal with wines and beers, I have had my fair share of experiences with various dairy products as well.
When it comes to frozen milk, it is important to note that the freezing process can affect its texture and overall quality. While it may still be safe to consume, you may find that the texture has changed, making it less desirable as a standalone beverage. This is due to the formation of ice crystals that can alter the milk's structure.
One common issue with frozen milk is that it can become slushy or have a grainy texture when defrosted. This can make it less appealing to drink on its own. However, if you are planning to use the milk in cooking, baking, or making smoothies, these texture changes may not be a significant concern.
Another potential issue with frozen milk is the separation of fats. When milk is frozen and then thawed, the fat molecules can separate from the liquid, resulting in a layer of fat on the surface. While this can be easily mixed back in, it may still affect the overall mouthfeel and taste of the milk.
To ensure the safety of frozen milk, it is crucial to store it properly. Make sure to use airtight containers that are specifically designed for freezing, as this will help prevent any unwanted odors or flavors from seeping into the milk. Additionally, label the containers with the date of freezing to keep track of its freshness.
When it comes to defrosting frozen milk, it is recommended to do so gradually in the refrigerator. This will allow for a more even thawing process and minimize any potential texture changes. Avoid defrosting milk at room temperature or using hot water, as these methods can lead to more significant alterations in texture and potentially compromise its safety.
Now, let me share a personal experience with frozen milk. Once, I accidentally left a carton of milk in the freezer for a couple of days before realizing my mistake. When I finally defrosted it in the refrigerator, I noticed that the milk had become slushy and had a slightly grainy texture. While it wasn't particularly pleasant to drink on its own, I decided to use it in a homemade smoothie instead. The texture difference wasn't noticeable once blended with other ingredients, and the smoothie turned out delicious.
While frozen and defrosted milk may undergo some changes in texture that make it less desirable as a beverage, it can still be safe to consume if stored and defrosted properly. It is best suited for cooking, baking, or making smoothies, where any texture differences may not be as noticeable. However, if you prefer a smooth and creamy milk to drink on its own, it is best to avoid freezing it and consume it fresh.