4 Things You Need To Know About Food Grade Welding Today

Food grade welding is a delicate procedure requiring a skillful touch to avoid making mistakes that could contaminate the food during processing. It involves adding value to food production through cutting, bending, assembling, and dishing. When looking for a welder, ensure they are well trained, know the specific food requirements for particular food applications and have experience performing food grade welding to avoid mistakes. Below are common mistakes done by welders during food grade welding and how to avoid them.

1.   Failure to remove burrs and sharp edges

Leaving small burrs and sharp edges is unacceptable in the food industry because they compromise the sanitation of metal surfaces. Additionally, they are likely to cause injuries to the workers impacting productivity negatively. To remove the burrs and sharp edges, skilled food-grade welders use processes such as sanding and grinding. The welder should also clean the welding materials for nice and clean results.

2.   Overstressing materials

Welders should avoid causing stress on the metal surfaces because it jeopardizes the integrity of the protective oxide layer that keeps the top stainless. Tampering with the oxide level also contaminates the surface, subjecting it to corrosion or cracking. Welders familiar with food-grade welding apply welding processes such as resistance, which has minimal impact on the chemical resistance properties on the metal.

3.   Welding with incorrect filler materials

Using inappropriate filler materials to bond two metals leads to metal corrosion, compromising the strength and integrity of the metal. Therefore, using the right filler materials is crucial. Welders with experience in food-grade applications prefer using welding procedures that do not require fillers or ones that use safe fillers that do not impact the integrity of the metal. Choosing such fillers requires welding knowledge and information since different metals have different electric potentials.

4.   Welding different metals

Welding different materials cause complications and risks such as corrosion and cracking due to heat stress. These processes' aftermath contaminates food since the corroded surfaces transfer liquid runoff and bacteria to different loads of food. The mistake can easily be overlooked and, therefore, the need to get an experienced food-grade welder is crucial since they understand the consequences of using other welding materials. They also understand the tools and methods required to fix the problem, such as using a protective coating to prevent the surfaces from directly contacting and contaminating food.


Food grade welding is a process that requires much consideration to be successful. Several potential mistakes are likely to happen, and therefore it is necessary to get welding services from a service provider like Cano Processing with enough knowledge and experience.