How to store protein smoothies?

How long does a protein smoothie last in the fridge?

A short, safe rule is one to two days in a sealed container. Tasting Table says opened store-bought shakes keep about two days. For homemade shakes it depends on the ingredients: it gives up to seven days for cow’s milk and up to ten for non-dairy milks, but cut fruit can start to spoil after just four days, so use the shortest ingredient timeline as your deadline. Always follow the label on ready-made shakes.

Can you freeze a protein smoothie?

Yes, for about three months. Pour it into an ice cube tray, freeze, then blend the cubes with a little liquid when you want it. Dairy-based smoothies can turn icy or grainy after freezing, so a quick re-blend helps.

How to store it well

• Use an airtight bottle or jar, filled almost to the top to leave less air.
• Chill it right after blending, not hours later.
• Keep it on a fridge shelf, not the door, where the temperature changes more.
• Shake or stir before drinking; protein powder and fruit separate.
• Thaw frozen smoothies in the fridge overnight, not on the counter.

How to tell if it has gone bad

• Funky or unpleasant smell.
• Dramatic darkening, new lumps or separation that does not mix back.
• A taste that is no longer like it was when made.

If in doubt, throw it out. Tasting Table suggests checking color, texture, smell and taste before drinking leftovers.

Taking it to work or the gym

Use an insulated bottle with ice, or pack the dry ingredients and add liquid when you arrive. A smoothie left in a warm bag for hours is not safe to drink. The common food-safety rule is to discard perishable food left out more than two hours.

These are general food-safety guidelines; the label of your protein powder or ready-made shake takes priority.