Today, let’s talk about how to control saccharification temperature during the beer brewing process, as well as the role each temperature stage plays. Based on the saccharification temperature, it can be divided into the following stages:

I.35–40°C: Steeping Stage

This temperature range is called the steeping temperature. It mainly facilitates the leaching of enzymes, the formation of acids, and the breakdown of β-glucans. This is the starting phase of saccharification, laying the foundation for subsequent reactions.

II. 45–55°C: Protein Rest Stage

This range is the protein rest temperature. Control methods are as follows:

• When the temperature is on the lower side, amino nitrogen content is relatively higher; when the temperature is on the higher side, more soluble nitrogen is produced.
• For well-modified malt, the temperature can be raised appropriately to shorten the protein rest time.
• Alternatively, this stage can be skipped altogether for well-modified malt.
• For poorly modified malt, a lower temperature should be maintained and the protein rest time extended.

At these temperatures, endogenous β-1,3 glucanase is released, and β-glucans continue to be broken down. Proper protein breakdown directly affects wort foam stability, yeast nutrition, and final beer flavor—which is why experienced manufacturers pay close attention to this stage.

III. 62–70°C: Saccharification Stage

This temperature range is commonly referred to as the saccharification temperature. Control methods are as follows:

• At 62–65°C, more fermentable sugars are produced and the proportion of non-sugars is relatively low, making this suitable for producing high-attenuation beers. At this temperature, endopeptidases and carboxypeptidases still retain some activity.
• When controlled at 65–70°C, malt extract yield increases, fermentable sugars decrease relatively, and the proportion of non-sugars rises, making it suitable for low-attenuation beer production.
• Controlling the saccharification temperature around 65°C yields the highest recovery of fermentable extract.
• By adjusting the temperature during this stage, the ratio of sugars to non-sugars in the wort can be effectively managed.
• If the saccharification temperature is too high, it favors α-amylase activity, shortening the saccharification time (the time required for a complete iodine test), and the proportion of non-sugars increases.

Temperature control during the saccharification stage is key to defining the “backbone” of the beer. A deviation of just two or three degrees can completely change the composition of the wort. Our company is located in the birthplace of China’s brewing equipment industry, and the complete industrial ecosystem around us allows us to rigorously validate the temperature control systems of every unit, ensuring stable, precise temperature response—this is one reason many customers choose us: our equipment not only delivers good specifications, but also faithfully executes the intended process.

IV. 75–78°C: Dextrinization Stage

At this temperature, α-amylase remains active, allowing further breakdown of residual starch, while other enzymes are gradually inhibited or inactivated. This stage concludes saccharification and locks in the wort composition.

Saccharification temperature control during beer brewing is typically divided into these four stages. Each stage does not stand alone; it relies on the combination of precise temperature control, operational experience, and process understanding. Our company’s brewing technology is among the best in the country, and our team is dedicated and reliable—from equipment delivery to on-site commissioning, we provide solid support to our customers. Cost-effectiveness is not an empty phrase; it means delivering equipment that consistently produces quality wort batch after batch, backed by timely support when needed, so customers can operate with peace of mind over the long term.

If you’d like to learn more about saccharification processes or equipment, feel free to leave a message.