Blender residue often collects around the blade assembly, lid and seals. Cleaning the visible jug alone can leave food in those spaces. Begin by unplugging the appliance and reading the cleaning instructions for the exact model before putting hands near sharp components.
Some blade units detach from the container; others are not intended to be removed by the user. Likewise, a gasket may be removable or permanently fitted. Do not pry apart an assembly simply because a similar blender has a detachable seal.
Follow the permitted disassembly
If parts come apart, note their order and orientation. Place small components where they cannot fall into the drain. Handle blades carefully using the manufacturer's method, and avoid wiping along a cutting edge with an unprotected finger.
Wash each part as directed. Dishwasher suitability, water temperature and cleaning tools can differ between the container, blade unit and lid. Keep the motor base and electrical connections dry unless the product has a specific approved cleaning method.
A quick blending cycle with water and detergent may be a recommended first step for some models, but it does not necessarily replace inspecting seals and recesses. Follow the full instructions and rinse thoroughly. Use only the liquid temperature allowed by the container and cleaning procedure.
Dry and rebuild carefully
Allow all parts to dry appropriately, including seal channels. Reassemble in the correct order and check that the seal sits evenly. A misplaced gasket can cause leaks or interfere with operation.
Inspect for cracks, damaged seals and worn connections. Stop using compromised components and obtain replacements confirmed for the model. A blade assembly that almost fits is not a suitable substitute.
Remember that cleaning instructions do not establish permission to blend hot food. Sealed personal blending cups commonly have restrictions on hot liquids, and other blenders have their own venting and filling limits. Check the actual use instructions separately.
Clean promptly after use when possible so residue does not dry hard around the blades. If the blender is too awkward to clean for the way you use it, that is useful information for a future purchase. A simpler container or accessible seal can matter as much as another speed setting.