Its use prevents the mash from burning. By using the mixing unit, we can move the mash right on the critically hot parts, such as the bottom of the cauldron, thus preventing the pieces of fruit or the sugar content from burning there.
All mashes are prone to sunburn, in which the fruit is present in lump form by the end of fermentation. This is mainly due to the lack of pectin degradation. Furthermore, all mashes tend to burning if the mash contains residual sugar, ie the sugar has not been completely converted to alcohol, and the situation is same when the mash is very thick, the risk of mash burning is increase.