The joys of media...
I worry about how much salt I put into my bait. This spodding neat salt into the water really worries me, as salt does not 'go away'. Putting it in neat when we don't know the full effects. Salt will kill micro-organisms and various water life. I cannot remember which university, but from research, 1 teaspoon of salt can pollute 5 gallons of water permanently, which can ruin freshwater ecosystems. Even more amusing is that table salt is possibly a repellant. The best level in carp diet of salt is 1.5%.
The shelf life versus freezer baits, no matter what I do when I make bait, I nearly always dry it for 24hours and then freeze it. I've tried totally airdrying them until all moisture is evaporated. No matter how good the preservatives, sometimes mould gets in. I've had foods and baits all go mouldy, despite being supposedly dried or preserved.
The airdried bait is a strange one that confuses people. It is rock hard, but draws water in faster than baits with moisture as in either frozen and thawed or shelf life. As a result, they go softer quicker. They do not go as far with a throwing stick or catapult, they are lighter.
I am sure it was Shaun Harrison who came up with or wrote about 'washing' attraction back into dried boilies, using hemp or particles juice. This is almost the predecessor of our fishing on the posts of this thread.