How do I remove gas stove heat stains from copper bottom pots?

I found this online, hopefully it helps: https://www.highettmetal.com.au/blog/copper/how-to-remove-burns-from-copper-pots

Sand n elbow grease

I wrote an article on cleaning copper - perhaps one of these methods will work for you - https://chascrazycreations.com/copper-cleaning-hacks/

Bar keepers Friend next to the Comet in the food store.

Make a paste use a paper towel and scrub it off. Its works very well.

Toothpaste with Baking Soda works for those moments you ran out of Cleaner. If you ran out of toothpaste, you can use a Paste of White Vinegar, Bleach and Baking Soda.

So Many on the Market Copper Cleansers exist to date.

They last a Long Time Too.

Most are like Thick Toothpaste or Car Wax anyway and cost about the same as any homemade solution.

Fine example: Wright's Copper Cream. Good Stuff. 3.89 for 8 ounces. If after you do clean them, you just avoid using Copper Pots on the gas stove, altogether, and use them only in the Oven, you will have the 8 oz. Container for 9 to 12 years.

At that rate, why go Cheap? Buy Wright's & budget a Dime a weekend...

This should help. https://www.hometalk.com/diy/clean/house/how-to-clean-copper-bottomed-pots-28611511

Stainless steel cleaner. Try Barkeeper's friend for alluminium.

Step 1: Cut a lemon in half and dip one of these halves into a dish of kosher salt, ensuring that the entire face has been covered. Then, rub the lemon onto the burned copper to help remove the stains.

Step 2: Take a dish scrubber and use it to work the salt and lemon juice deeper into the burns. Then, give the copper a good rinse with clean water to remove the remnants of the lemon scrub and the marks.

Step 3: Fill the kitchen sink with enough white vinegar to cover any remaining burn marks and place the copper pot into the liquid. Leave the metal to sit this way for about 10 minutes, then scrub the marks and rinse.

Step 4: Any remaining burn marks can be removed with a generous layer of tomato sauce. Leave the pot to sit like this for up to 30 minutes, then wash with dishwashing liquid, rinse and dry.