I use Oxyclean to get stains out of decanters and stemware. Not for corked wines.
If a wine is corked, I rinse the decanter or stem several times. I don’t think soap, bleach, or fire is needed. TCA is really potent. Concentration is measured in parts per trillion. That said, you don’t have pure TCA in your glass. When your wine is obviously corked it’s probably 3-4 ppt, or in a REALLY horribly corked wine maybe 10 ppt. So you empty from decanter, there’s maybe 0.2 oz of wine clinging to sides. If you fill decanter (50 oz?) and empty 3 or 4 times, the concentration is into homeopathic levels. If anyone claims to be able to taste TCA in concentrations of .001 ppt I’d like to see them show in a lab test.
I would just use dishwashing liquid with hot water, at least 2 times go-around, and then rinse with hot water several times. Btw, this cleaning brush is pretty much a necessity for me when cleaning my decanters and we bought ours at a local home/kitchen utensils/gadgets store:
I never had any luck with the cleaning brushes, because the curves of most decanters are hard to navigate with them. That’s why I went to the Efferdent with hot water treatment, because it works perfectly for any stains and leaves no residual taste after a couple of rinses. Can’t necessarily say the same about dish soap.
No problem dish soap, as long you rinse vigorously and often, with hot water.
Also, I’ve cleaned with a similar brush as in the photo upright pear-shaped decanters, the wide flat-based ones jsut like in the amazon photos, even have one that’s shaped like a friggin’ swan that somebody gifted us. The brush can be easily bent and it reached every nook and cranny.
Btw, anybody here other than me that’s surprised and amused to learn that there are, so far, 15 different ways to wash and clean a decanter?