If the stain is old oil based substance e g grease it can melt and spread under the glaze creating a larger stain.
What causes stains in ceramic crock pot.
There are no microscopic holes that need to be sealed.
Setting the ceramic insert down on a hard surface with too much force could also cause cracks.
There s no way that getting it wet can cause stains or damage to a crock.
In some cases those cracks might be microscopic but the next time the slow cooker is heated it could cause the cracks to break apart.
To clean and remove stains from a slow cooker heater.
Bleach or chlorine may remove the stains but also can damage your ceramic item as illustrated below.
1 do not use bleach or chlorine.
For example crock pot the brand name that inspired a host of similar ceramic slow cookers now generically known as crockpots tells callers in an automated message that it uses no lead additive.
This seems to happen no matter what type of pot i use.
I soak and scrub and i know it is clean but when the pots drys i can see a white residue.
Your cleaning method is 100 harmless.
To remove this film or residue wipe the inside of the crock pot with water and white vinegar.
It s an impervious fired on glass coating.
We know it s a magic cleaner in the kitchen just fill the insert with water up to the top add a few tablespoons of baking soda and a few drops of dish soap and then turn the setting to low.
Wiping a crock with olive oil will do absolutely nothing except make it sticky.
Hard anodized stainless ceramic or enamel coated cast iron.
If your slow cooker insert has a persistent ring of crud along the inside you can up the cleaning ante with a little baking soda.
Crock pots one brand of slow cookers are handy appliances that prepare an assortment of meals.
For stubborn film steam clean the crock with water vinegar and baking soda.
Crock pot themselves recommend to always fill your slow cooker at least 1 3 of the way full.
But these appliances have a tendency to stain from heat and burning.
A dark ceramic crock pot tends to show mineral deposits or white residue more easily than a white ceramic insert.
Some parts of slow cookers are dishwasher safe but the heating base is not.
Once that s all taken care of it s time to move on to cleaning the housing or outer part of the crock pot where the heating element is.
The ceramic crock pot is meant to be easy to clean.
2 do not heat in oven.
So by soaking in a warm soapy solution this should loosen any residual material which can be easily scrubbed off before the next use.