If the yellow stains are in a plastic container, you can pour rubbing alcohol into it and let the rubbing alcohol sit for a few minutes. If the piece of plastic can’t hold liquid, pour rubbing alcohol into another container and put the piece of plastic inside.  Rinse the piece of plastic with soap and water after pouring out the rubbing alcohol. If you don’t have rubbing alcohol, you can also use hand sanitizer the same way. Purchase denture tablets at a drugstore or big box store and dissolve 2 tablets into hot water. Pour the mixture into or onto the stained plastic and let it sit until the stains are gone. Rinse the plastic off with soap and water. You can also use alka seltzer as a substitute for denture tablets, as it will work similarly. Mix 1 tablespoon (15 ml) of bleach per 1 cup (240 ml) of water. Cover the plastic in the bleach solution and let it sit for 1-2 hours. Rinse the plastic with soap and water after you pour the bleach out. Test the bleach out on a small section of the plastic before covering it entirely to make sure it doesn’t harm the plastic in any way. White vinegar works wonders on plastic similarly to bleach, without it being as harmful. Mix 1 part white vinegar with 1 part water before pouring the mixture into or onto your plastic. Let the plastic sit with the white vinegar for a couple of hours before rinsing it clean with soap and water.  If you’re trying to remove stains from a piece of plastic that can’t hold liquids, pour the white vinegar mixture into a container and then set the piece of plastic inside. The vinegar smell will disappear once the plastic is washed and left to dry. Hydrogen peroxide works well on plastics that have turned entirely yellow instead of in just one spot. Fill a plastic bag with enough hydrogen peroxide to cover the plastic. Stick the plastic in the bag of hydrogen peroxide and lay it out in direct sunlight. Wait 3-4 hours before rinsing it off with clean water.  You can purchase hydrogen peroxide at a drugstore or big box store. If you’re treating...

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Write a summary of the previous text in Indonesian:
Basahi noda dengan alkohol gosok supaya larut. Larutkan tablet pembersih gigi palsu dengan air panas untuk memperbaiki perubahan warna. Coba gunakan produk pemutih yang mempunyai bahan pemutih yang kuat. Gunakan cuka putih jika Anda tidak ingin menggunakan pemutih. Basahi plastik dengan hidrogen peroksida untuk memperbaiki perubahan warnanya. Bilas plastik tersebut sepenuhnya untuk menghilangkan cairan.