Symptoms
- Liquid seeping out from under the bowl during processing
- Wet residue around the blade shaft after use
- Leak worse with thin liquids like soups or purees
- Bowl seems to sit slightly uneven on the base
Likely causes
- CommonWorn or missing O-ring/seal around the blade shaftThis small rubber seal prevents liquid from escaping around the spinning shaft and wears out over years of use.
- CommonBlade not fully seated on the drive shaftAn improperly seated blade can leave a gap for liquid to escape.
- PossibleCracked bowl bottom near the shaft openingImpact damage or age can crack the plastic around this stress point.
- PossibleOverfilled bowl, especially with thin liquidsProcessing more liquid than the bowl is designed for can force it past the seal.
- Less commonBowl not seated flush on the baseA tilted bowl can allow liquid to pool unevenly and find gaps.
What to do
- Empty the bowl and remove the blade, checking the small rubber seal or O-ring around the base of the blade shaft for cracking or missing pieces.
- Reseat the blade firmly onto the drive shaft in the bottom of the bowl, making sure it sits flush.
- Reduce the volume of liquid, staying well under the max fill line, especially for thin liquids like broth.
- Inspect the underside of the bowl around the shaft opening for hairline cracks by holding it up to a light.
- Confirm the bowl sits flat and evenly on the base without wobbling.
- If leaking continues after confirming the seal is intact and the blade is seated, replace the O-ring/seal (often sold as a spare part) or the bowl if it's cracked.
Tools and parts
Food processor blade shaft O-ring/seal replacementSearch: “food processor bowl seal replacement”
When to call a pro
This is a simple part replacement most people can do themselves; a professional isn't needed.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.