Instructions on how to clean a Cuisinart coffee machine when the CLEAN light appears
https://www.youtube.com/watch?v=rNZAQYQqm5M
Remove carbon/charcoal filter
Use Cleaning Vinegar
1/3 vinegar and 2/3 water (maybe close to half)
https://lifeboostcoffee.com/blogs/lifeboost/what-to-do-when-the-clean-light-on-your-cuisinart-coffee-maker-stays-on-troubleshooting-tips
Cleaning Vinegar Recommendations:
Kroger
https://www.kroger.com/p/kroger-fresh-scent-multi-purpose-cleaning-vinegar/0001111011668
Walmart
https://www.walmart.com/ip/Great-Value-Cleaning-Vinegar-All-Purpose-Cleaner-64-fl-oz/597763688