The brewery equipment is made of steel, a material that can be polished to a high sheen. This polishing process, called mechanical polishing, gives beer equipment an attractive appearance and makes it more durable. The reason why beer equipment should be polished is to maintain its cleanliness and hygienic performance. Polished stainless steel helps prevent the growth of bacteria and other microorganisms, preventing them from adhering to surfaces in kegs, tanks, pipes, and more.
Polished stainless steel is more resistant to corrosion and thus helps you get the most out of your equipment. For example, polished stainless steel is more hygienic because it is easier to clean and does not retain dirt and bacteria like unpolished stainless steel.
Welding and heat treatment
Welding and heat treatment are two important factors to consider when selecting steel for brewing equipment. Welding is a joining process in which two pieces of metal are joined together by heating them until they melt and then allowing them to cool. The result is often a seamless joint stronger than the original metal.
Food Hygiene Requirements
If you’re in the beer business, you know that food hygiene is important. This is required by law and health authorities. There are several different levels of food hygiene standards that need to be met. Not only does it affect the safety of your customers, but also their perception of your brand.
The Brewing Equipment Institute has stated that polished stainless steel has a smooth surface that won’t inhibit the growth of bacteria or mold. However, if water containing harmful bacteria comes into contact with this metal (and then food), it can cause serious problems.
Effect of mechanical polishing on the quality of beer equipment
To polish a surface, you need to know its true color. When the oxide layer on steel is removed, it exposes the pure metal underneath. This can be used to determine if your equipment has rusted or if there are any contaminants in your beer production process. Polishing also removes any dirt or oil that may have accumulated on this part of the device during use, which can affect the taste of your drink later on!
Beer equipment production polishing process
- Seam weld the stainless steel plate into a cylinder and a cone bottom.
- Weld the pit plate on the cylinder body and the cone bottom.
- Grind the inside of the cylinder. First, workers manually polish to remove some obvious weld slag. Secondly, use professional machines with different abrasive belts for further polishing, 80 mesh belt (RA=0.2mm)→120 mesh belt (RA=0.12mm)→240 mesh belt (RA=0.6um)→400 mesh belt (RA=0.2mm) microns). When the mesh belt is 240 mesh, the RA inside the tank is 0.4-0.6um, and the inside of the tank is hygienic and can be used for brewing beer. For some strict brewers, they will require an RA lower than 0.4um, so we will use a 400-mesh sand belt to improve the polishing accuracy. Sand the cone bottom inside. Same as the cylinder. Polish the dish top. Same as the cylinder and conical bottom.
- Assemble and weld the top, cylinder, and bottom together.
ACE beer brewing equipment
Internal: Pickling and passivation treatment, internal polishing to 0.2~0.4μm without dead angles.
External: The surface of the board is protected by a brushed oil film, and the weld seam is polished.
High-quality stainless steel beer brewing equipment
ACE craft beer brewing equipment is a quality product that utilizes various processes to ensure your equipment is perfect. First, we perform pickling and passivation treatment, which removes any contamination from the internal working area of the equipment. Then we polish it to 0.2~0.4μm without any dead angles, making sure all parts are smooth and shiny. The welds are also polished so they won’t rust over time. If you’re planning to open your own beer equipment factory, ACE will gladly assist you and look forward to your visit!
Get a turnkey solution for brewery equipment. If you’re planning to open or expand your brewery, you can contact us directly. Our engineers will design and manufacture brewery equipment according to your brewing process. We will also provide you with a complete turnkey solution. Additionally, if you plan to expand your brewery, we can offer customized solutions for your needs.