The sugar wich is known as malt sugar is?

Malt is a sprouted grain, usually barley, which is cooked to give off all its aromas. Malting is a simple operation that consists in reproducing, in an industrial way, the natural development of a cereal, usually barley although wheat, wheat, rye or sorghum are also suitable, so that the latter produces certain enzymes and sugars. The malteur is the person who is in charge of this operation. Malting is a simple operation which consists in reproducing, in an industrial way, the natural development of a cereal, generally barley, although wheat, wheat, rye or even sorghum1 is also suitable for the production of certain enzymes and sugars. The malteur is the person who is in charge of this operation

The sugar known as malt sugar is more prosaically, it is a sugar made from grains by malting them. The grains might include barley, rice or wheat. It can come as a thick, sticky clear or amber-coloured syrup sold in tins or tubs, or as a white or off-white crystalline powder with no odour to it.