This is an amazing natural fish attractor. Butryic Acid is used in Carp bait as an additive and flavouring. It has been proven that fish find this organic acid very palatable which is why it is such a good additive to be used in boilies. Butyric acid is an additive not to be ignored and will certainly improve your catch results. Being very potent you only need a small amount, as little as 1-4 drops per kg in base mixes when used with other flavours.
N-Butyric acid is water soluble which makes it a great additive to use during the cold water temperatures.