A vacuum blender does not take the air out while it blends. It takes the air out first, and then the blades run in a jar that has very little oxygen left in it. That order matters, and it is the step people most often get backwards when they start.
Here is how it works with a VOID lid, and what to check when it does not.
Before the first use
Charge the lid fully. It sits on its wireless charger with the magnet holding it in place, and it charges from any USB port. Take it off the charger before you use it: the pump does not run while the charger is attached.
Load the jar
Liquid goes in first, then soft ingredients, then frozen or fibrous ones on top. Leave the rim of the jar clean and dry, because the seal happens there. A smear of yogurt or a seed on the rim is the most common reason a jar will not hold.
Do not fill past the fill line, and do not put boiling or near boiling liquid in the jar. Lowering the pressure over a hot liquid makes it boil at a lower temperature, and a sealed jar of hot foam is not something you want to open. Blend soup cold and heat it afterward.
Seat the lid and pull the air out
Put the lid on the jar and check that it sits flat. Pick a preset and press Go. The pump runs, the screen shows its progress, and the lid pulls down onto the jar as the air leaves. When the screen says Ready to Blend, the jar is at working vacuum.
Switch the lid off, then blend
This is the step to remember. Once the pump has finished, switch the lid off, and then run the blender. The seal holds on its own while the blades turn. The pump and the motor should not run at the same time.
Blend as you normally would. Without air to whip in there is no foam to speak of, so most blends finish sooner than you are used to. Stop when the texture is right.
Vent before you open
When the blend is done, pull the red tab. Air comes back into the jar and the lid lifts as any lid should. Until you vent, the lid stays locked down by the weight of the air in your kitchen. That is the seal working, not a fault, and prying at it is how people spill a full jar.
If the pump keeps running and never says ready
The jar has not sealed. Almost always it is one of these:
- Something on the rim of the jar or on the gasket. Wipe both dry and try again.
- The gasket is not seated, or it has flattened, cracked or swollen. Take it out, look at it, put it back. If it has lost its spring, replace it.
- The lid is not sitting flat on the jar.
- The jar is not a VOID jar or a Blendtec jar. The lid seals against those two and nothing else.
Do not keep cycling the pump against a jar that will not seal.
After
Wash the jar and the gasket by hand in warm soapy water and let them dry. The gasket on its own can go in the dishwasher. Wipe the lid with a damp cloth. Never submerge the lid and never let water reach the pump. Do not put the lid in the fridge or the freezer; it is an electronic part with a battery in it.
The full manual is at /pages/how. If something is not covered there, email cs@voidvac.com and it comes straight to us.
Which VOID fits the blender you own
The Complete System is our vacuum blender. If you already own a Blendtec or a classic Vitamix, we make a VOID lid and a Retrofit Kit for those too. The lid on its own seats on Blendtec WildSide+, WildSide and Fourside jars, and on the Professional 800. A classic Vitamix, the kind with a black rubber pad with grooves on the base, takes the Retrofit Kit, which brings a VOID jar that seats on your base. The smooth Ascent and Venturist bases do not take it, and for those, or for a kitchen with no blender yet, the Complete System is a full blender with the lid in the box.
Pick your blender below and it tells you which one to order. On US orders, if it does not fit your machine, the return is free.
