First and second brew

[TheScarletQ]

I've made two batches so far and they're currently in secondary fermentation. I'm pretty sure i know what went wrong but id like a second opinion.

First one i let get exposed to the air too much so its slightly vinegary.

The next one though, is really bitter. I let it ferment in primary fermentation for 2 weeks mostly due to laziness and a busy schedule.

Should i be racking them at regular intervals?

 

[Miraculix]

Best is to follow a proven protocol with staggered nutrient additions and none of these modern protocols include racking before fermentation has finished.

You might want to start here:
https://www.youtobrew.com/mead-making-101

 

[Dan O]

I've made two batches so far and they're currently in secondary fermentation. I'm pretty sure i know what went wrong but id like a second opinion.

First one i let get exposed to the air too much so its slightly vinegary.

The next one though, is really bitter. I let it ferment in primary fermentation for 2 weeks mostly due to laziness and a busy schedule.

Should i be racking them at regular intervals?

What @Miraculix said