How to make blueberry juice in a portable blender
About 5 minutes · 1 bottle (350 ml)
Blueberry juice made in a portable blender is not juice in the extractor sense — there is no pulp screen and no separate waste chute. What you get is the whole berry broken down into liquid, which you can drink as it comes or pour through a sieve if you want it thinner. Both versions start the same way, and both fit one 350 ml bottle.
Ingredients
- 150 g blueberries, fresh or frozen
- 150 ml cold water
- 1 tsp lemon juice
- Optional: half a banana, or 1 tsp honey, to sweeten
Step by step
- Pour in the water. Add the cold water and the lemon juice to the empty bottle first, so the blades have liquid to move through.
- Add the berries. Tip the blueberries in on top of the water. Stop at about two-thirds full to leave the contents room to climb.
- Seat and start. Screw the bottle onto the base and double-click the button to run one 30-second cycle.
- Check and repeat if needed. Lift the bottle off, shake it once, and run a second cycle if any berry skins are still visible.
- Strain if you want it thinner. Pour through a fine sieve into a glass for a thinner juice, or drink it straight from the cap as it is.
Frozen or fresh berries
Frozen blueberries are the easier starting point. They are picked and frozen in season, they are usually cheaper by weight than fresh, and they chill the drink without any ice — which matters in a 350 ml bottle, where every ice cube is volume you are not filling with berries. Let them stand out of the freezer for two or three minutes before blending so they are not one solid clump.
Fresh berries work equally well and give a slightly lighter result. If you use fresh, add two or three ice cubes to bring the temperature down, and drop the water by the same amount so the bottle does not overfill. Either way, rinse them first and pull off any stems.
Loading the bottle in the right order
Liquid goes in first, then soft ingredients, then anything frozen on top. This is the single habit that makes the difference between a clean blend and a bottle that spins air. The blades sit at the base, so they need something they can move through immediately; a layer of frozen fruit packed straight onto them just locks in place and the motor churns underneath it.
Fill to the marked line and no further. The bottle is 350 ml and it needs headroom — the contents climb while they blend, and a bottle filled to the brim will push against the cap instead of circulating. Roughly two-thirds full is the right target for a fruit-and-water drink like this one.
The blend
Seat the bottle on the base and double-click the button. That starts a 30-second cycle, which is the whole blend for a drink this soft — you do not need to hold anything down or count. The motor will not start unless the bottle is seated on the base, and it stops the moment the bottle is lifted off, so if you want to check progress part-way through, lifting it is the way to pause.
If a few berry skins are still visible at the end, run a second cycle rather than a longer first one. Two short cycles with a shake in between break down stragglers better than one long one, because the shake moves the unblended pieces back down towards the blades.
Straining it, or not
Straight out of the bottle this is a thick juice with the berry skins still in it. If that is what you want, drink it from the cap and you are finished. If you want something closer to a clear juice, pour it through a fine sieve into a glass and press the solids gently with the back of a spoon.
Straining costs you about a third of the volume, so if you are planning to strain, start with more berries and less water than the base quantities below — say 200 g of berries to 100 ml of water — and you will still end up with a full glass.
Adjusting the sweetness
Blueberries vary enormously between batches, and a bag that tastes sharp in February will taste sweet in August. Taste before you add anything. If it needs lifting, a squeeze of lemon does more than sugar does — the acid sharpens the fruit that is already there rather than layering something else over it.
If it genuinely needs sweetening, half a banana blended in is the simplest option and it thickens the drink at the same time. A teaspoon of honey or maple syrup works too; add it with the water at the bottom of the bottle so it dissolves rather than sitting on the blades.
Cleaning up
Blueberry stains everything it sits in, so rinse straight after drinking rather than later. Half-fill the bottle with warm water, add a drop of dish soap, and run one 30-second cycle — that clears the blade housing better than a brush can reach.
The bottle opens at both ends, so once the water cycle is done you can unscrew the base and rinse the blade side directly under the tap. Leave both halves to dry separately rather than screwing them back together wet.