After washing it with warm, soapy water, try filling it with warm water and baking soda. Let it sit several hours. If the smell is still there, try vinegar.

A good washing and airing out. Keep the lid off after you wash for several day. Sunlight always does well to diminish odors. Set outside in the sun for a day after thorough washing.

I agree, a good washing in hot soapy water (I would use dish soap) and then a scrubbing with vinegar and then a second washing should really help.

Hello. I often use borax soaks to get rid of odors. Here’s a link for your consideration.

https://www.healthline.com/health/is-borax-safe#TOC_TITLE_HDR_1

Pour boiling water in it, Put a couple table spoons of vinegar and let sit till cool. Wash and rinse...

It might be easier to buy a new canister for the flour if the other suggestions don't work well. Where are you going to store your coffee?

Hi Trish,

Put it through the Dishwasher or fill it 3/4 way with water and put it in the Microwave .

I agree with Ken, that after spending money and time trying to eliminate the coffee odour, it may simply be more cost and time effective to purchase a new unused canister for flour storage.

Unfortunately, depending on the type of plastic that the coffee canister is made from, it may be next to impossible to remove the coffee smell. Coffee essence can be very strong and long lasting, and flour can take on odours easily. Even with high-end plastic storage containers such as Tupperware that are pricey, the coffee smell can continue to linger and be released on to whatever you try to store in the container.

Hopefully any or all of the treatments listed will work for you, if not, then a new canister might be in order.

If nothing works, you might consider a heavy weight plastic bag (freezer quality) inside the tin, put your flour in that bag and seal the bag shut, replace the lid. That way any of the residual coffee fragrance has a further barrier from the flour. You might experiment with a small amount of flour at first so you don't have all your flour coffee scented. Best to you.

This will help: https://www.youtube.com/watch?v=-lPfY4ELloc

Use Clorox outdoors it is great at removing tea and coffee stains

I get odors out of anything by using a combination of vinegar and baking soda. The only trick is to leave it soaking overnight. It doesn't have to be straight vinegar and baking soda, of course you can dilute it with water. The stronger the smell the more vinegar and baking soda in the water. Hope this helps.

This may help:

https://www.thriftyfun.com/Removing-the-Coffee-Smell-from-Plastic-Canisters.html

Hi Tish: To remove the coffee smell, just put one teaspoon baking soda in the tumbler and fill it with water. Let it sit at least 30 minutes (the longer, the better). You may have to repeat this process.

Or:

https://www.hunker.com/13421383/how-to-remove-coffee-odor-from-plastic

Fill it with baking soda, put the lid on and leave it overnight. You might not need to fill it the whole way

Hope this helps you remove the coffee smell from your plastic canister.

www.hunker.com › ... › Housekeeping › House Cleaning

Sprinkle baking soda into the plastic cup or container, cover and let sit overnight. The baking soda is a natural odor absorbent that will pull out the coffee odor. Step ...

Hello Tish, hope these help you out,

https://www.hunker.com/13421383/how-to-remove-coffee-odor-from-plastic

https://www.hometalk.com/33200173/q-how-to-remove-coffee-smell-from-tupperware-canister