The method and effect of malt smashing

Malt smashing usually use dry crushing, wet crushing, moisture regain grinding and consecutive humidifying crushing four ways.

Dry crushing: is a traditional crushing way, requires moisture of malt is better between 6%~8%.

Wet crushing: The malt is soaked in warm water of 20 ° C ~ 50 ° C for 15-20 minutes, so that the water moisture of the malt reaches 25% - 30%, and then pulverized by a wet malt miller.

Moisture regain grinding: also called humidification crushing, it is to send steam or a certain temperature of hot water to the malt in a short time to humidify the wheat hull, so that the husk is elastic and not broken, and remains relatively intact during crushing, which is favorable for filtration.

Consecutive humidifying crushing：organic combines wet crushing and humidification crushing, make malt entre to the soaking chamber during the function of adding material stick, then soaking it 60 seconds in warm water, so the moisture of malt can up to 23%~25%.The malt husk is elastic and then enters the malt miller. It is crushed and sprayed water at same time. After crushed, it falls into the mixing tank. After adding water and becoming thick liquid, it is pumped into the mashing pot.

What are the effects of mashing way to grinding degree?

At present, the mashing method mainly divided into two types, one is leaching mashing and another is boiling mashing.

The leaching mashing way don't need to steam and boil mashing wort, the dissolution and decomposition of the malt contents are carried out which happened below the boiling temperature, which requires the endosperm to be finely pulverized, and the mechanical cell wall is destroyed by mechanical pulverization to increase the contact area between the enzyme and the substrate.

The boiling mashing way is the concentrated wort that contains more particles heated to boiling temperature, it can compensate for the lack of mechanical grinding, so the crushed material can be slightly thicker. The more times you boil, the effective is better.

What are effects of filternation equipment to grinding degree?

The most common filtration equipment is lauter tank now, also very few parts is plate and frame filter press.

These two types of filtration equipment have differences for the ratio of each apart that required malt crushing material. The lauter tank uses the wheat hull as a natural filter layer.

When crushed, the wheat hull was broken out, the contents are separated from the wheat hull, the wheat hull is kept as intact as possible, and the endosperm is crushed by secondary or tertiary. When filtering with a plate and frame filter press, the wort is filtered by external pressure, and the wheat hull does not look so important when it was as a filter layer, so it can be crushed thinly.

How many ways of feeding in crushing system？

After crushed by the malt miller, then feed material by manual.

After crushed by the malt miller, then feed material by machine

After the malt miller is finished, it is sent to the powder bin by the conveyor/machine (above the mashing pot), and then directly dropped into the feeding port by the powder hopper.

After the malt miller is finished, it is sent to the powder bin (on the ground) by the conveyor, and then transported to the feed port through a conveyor.