The short answer

Quick answer. For the gym, a portable blender is a convenience for one soft drink: pack the dry ingredients in a bag, carry the liquid in a bottle, blend at the end of your session and rinse the cup straight away. Our green smoothie, halved for one, is about 292 g in the bag, of which 120 g is liquid. Do not carry blended drinks for hours; homemade drinks are not pasteurized.

What goes in the bag

The weight and the mess both come from the liquid, so carry it separately. This table splits our green smoothie per serving into what you pack dry and what you add later.

Half of the two-serving recipe in our recipe data.
IngredientHow to pack itPer serving
spinachDry: pack in a bag or box30 g
bananaDry: pack in a bag or box59 g
pineappleDry: pack in a bag or box83 g
coconut waterLiquid: add at the gym or carry in a bottle120 g

The dry part, spinach, banana and pineapple, comes to about 172 g. Keep banana and pineapple in a closed box so they do not leak, and spinach in a bag with a dry paper towel.

A gym routine in five steps

  1. Charge it the night before. Check the light before you leave.
  2. Pack dry food in a box or bag and the liquid in a bottle, cold.
  3. After your session, blend: liquid first, then soft items, then leaves.
  4. Drink it soon. Do not carry a blended drink for hours: it is not pasteurized, and no official storage time exists.
  5. Rinse the cup straight away, then wash it at home with a brush.

For the sum behind how many blends one charge gives, see the battery guide.

Juicing gear on Amazon

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What to avoid at the gym

  • Ice and large frozen chunks. They stress a small motor and drain the battery.
  • Hot liquid. Not for a sealed blender cup unless the maker says so.
  • A full cup. Stay under the max line.
  • Running it empty. It can damage the blade and seal.

We make no claim about what a smoothie does for training or recovery. For a cup that carries a drink without blending, see the travel cups hub.

Cleaning in a locker room

Rinse the cup and blade assembly under the tap right after blending, shake it, and wipe the gasket. Take it home in a bag and wash it with soap, a bottle brush and a small brush for the seal. Dry it with the lid off. A cup left closed with smoothie film smells within a day. The cupholder guide covers carrying it in the car.

A packing list

  • Blender with the cup attached, charged.
  • A closed box of banana and pineapple, and a bag of spinach.
  • A cold bottle of coconut water or water for the liquid.
  • A small brush or cloth, and a bag for the wet cup on the way home.

Pack the blender upright so the button cannot be pressed in the bag, and check the lock position if the maker provides one. See the buying guide for what to check in a model.

Sources: Our recipe data (green smoothie); FDA, juice safety.