So I have given this a go and each time I go back to the bucket there is mold in it and/or it is super cloudy, any way to get around this? I have wasted two more 5 gal batches
Are you using a sealed bucket?
I store mine in a korny keg and I've never had mold grow in it. In theory the starsan will be neutralized after prolonged contact with oxygen in the air. The PH will raise and you no longer have a starsan solution but a neutralized phosphoric acid solution. This will not sanitize and will not prevent growth of spores. A sealed container should prevent this. Just keep the air/starsan ratio as low as possible. If you are sealing the bucket and it's mostly full I have no idea what the problem is.