DF Solid
DF Solid is a starter culture specially developed for "solid state fermentations", such as Corn Cob Mix (CCM). This starter culture is a mixture between homofermentative and heterofermentative lactic acid bacteria strains. This is very important because with this combination of different types of lactic acid bacteria , the stability of the silage when opened (and oxygen is added again) is clearly positively influenced.
Ease of use
We came up with a trick to make the colour change, so everyone can see when the starter culture is ready. You fill the Jerry can with bacteria and nutrients with water. When the product is mixed with water, the colour turns dark blue. The lactic acid bacteria start to grow and make a little lactic acid, making the product more acidic. This makes the colour maize yellow: the starter culture is ready.