Some mold affected areas are built up over the years due to water damage.
Then, spray another side with the same ratio or one pot hot water and vinegar.
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Next, let both side sit for 30 minutes.

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Take a cloth and wipe off the mold.
Wash the rag a couple times if it gets dirty so you dont spread the mold around.
Repeat and do another coat to ensure you get a deep clean.

Continue to watchBillshowtoon YouTube for full instructions and details.
Overall, the bleach does a better job to remove most of the mold versus the vinegar.
However, they both work and it depends how much mold you might have too.

Bill has amazing cleaning tips and hacks on his channel that will save you money in the long run.
This is a perfect demonstration with detailed instructions.