How to Clean Your KitchenAid Blender Jar Expansion Pack

By KitchenAid® | Published: 2026-10-23

Category: How-to Guides

Learn how to clean your KitchenAid 16-oz personal blender jar expansion pack. Step-by-step guide for daily rinsing, deep cleaning, and drying the jar and lid.

Quick answer

Rinse the jar immediately after use, then wash with warm soapy water and a soft sponge. For stuck-on residue, use a diluted bleach solution or a baking soda paste.

Why cleaning matters for your expansion pack

The 16-oz personal blender jar is designed for single-serve drinks, but leftover smoothie or sauce can cling to the jar walls and lid gasket. Regular cleaning prevents odors, stains, and buildup that could affect the flavor of your next blend.

Because this accessory is not dishwasher-safe (the plastic jar and lid can warp or degrade in high heat), hand washing is the only recommended method. The steps below keep your jar looking clear and working properly for years.

Step-by-step cleaning guide

Rinse immediately after blending: Fill the jar halfway with warm water, add a drop of dish soap, and blend on low for 10 seconds. This removes most residue before it dries. If you wait, dried pulp or seeds become much harder to dislodge. Do not let residue dry inside the jar. A quick rinse-blend saves scrubbing time.
Wash by hand with a soft sponge: Remove the jar from the base and hand-wash with warm soapy water and a non-abrasive sponge. Pay extra attention to the bottom corners and the threads where the lid screws on. Avoid steel wool or scouring pads—they scratch the plastic and create hiding spots for bacteria. Scratched plastic harbors bacteria and looks cloudy. Use only soft sponges.
Clean the lid separately: Unscrew the lid and wash it by hand with the same soapy water. The lid’s gasket and pour spout trap small particles. Use a small brush or old toothbrush to reach the underside of the gasket. Rinse thoroughly. The lid is the most common source of lingering odors. Clean it every time.
Deep-clean for stains or odors: For tough stains or lingering smells, fill the jar with a solution of 1 tablespoon baking soda and 1 cup warm water. Let it sit for 15 minutes, then scrub with a soft sponge. For an even deeper clean, use a diluted bleach solution (1 teaspoon bleach per 1 cup water) and soak for 10 minutes, then rinse very thoroughly. Baking soda neutralizes odors; bleach disinfects. Never mix them.
Dry completely before storing: Place the jar upside down on a drying rack and leave the lid off until both are completely dry. Storing a wet lid or jar encourages mold growth. Air drying takes 2–4 hours; you can speed it up with a clean dish towel. Moisture is the enemy. Store only fully dry parts.

Product details

16-oz Personal Blender Jar Expansion Pack for KitchenAid® K150 and K400 Blenders: 16-ounce capacity ideal for personal smoothies, shakes, or sauces. Compatible exclusively with KitchenAid K150 and K400 blenders. The small size means you blend directly in this jar, so thorough cleaning after each use keeps it fresh for the next single serving.
16-oz Personal Blender Jar Expansion Pack for KitchenAid® K150 and K400 Blenders