It is not a marketing label. It is a defined classification with real rules behind it, and using the wrong product in the wrong place can put you in breach of your food safety obligations.
This guide explains what food-grade lubricants are, what the NSF categories H1, H2, H3 and 3H mean, when you are required to use them, and how to choose the right one without paying for performance you do not need or accepting performance you cannot afford to lose.
It also gives practical examples of where products such as food-grade hydraulic oils, food-grade gear oils, food-grade compressor oils and food-grade greases are typically used, so you can make a better-informed decision when comparing options.
A food-grade lubricant is one that is safe to use in food-processing environments where it might come into contact with food, either directly or by accident. The key idea is incidental contact: the small, unintended transfer of lubricant onto a product during normal operation, for example a trace from a conveyor, a filler, a mixer, a bearing, or a gearbox positioned above a production line.
These lubricants are formulated only from base oils and additives that are approved as safe at trace levels. They are not edible, and they are not meant to be in food in any quantity, but they are formulated so that incidental contact does not create a safety problem.
This is why products in a dedicated food-grade lubricants category are different from standard industrial lubricants. A conventional hydraulic oil, gear oil or grease may perform well mechanically, but that does not make it suitable for food and beverage production if there is any realistic possibility of incidental contact.
The recognised system comes from NSF, which registers lubricants against categories originally set by the US Department of Agriculture. You will see four codes.
H1 is the category most people mean when they say food-grade. These lubricants are used on equipment where there is a possibility of incidental contact with food. They are formulated from approved base stocks and additives, and any incidental contact is permitted only at trace amounts, not exceeding 10 parts per million.
If a lubrication point sits above the product line, or anywhere a stray drop could reach the food, it needs an H1 lubricant.
Common examples include food-grade hydraulic oils used on food-processing machinery, food-grade gear oils used in drive systems around production lines, and food-grade greases used on bearings, conveyor systems, rollers and other moving parts where washdown, moisture or incidental contact risk may exist.
Products such as Mobil SHC Cibus 46, Mobil SHC Cibus 68, Cassida Fluid HF 46, Cassida Fluid GL 220, Cassida Grease EPS 2 and Mobilgrease FM 222 are examples of food-grade lubricants that firms may compare depending on the application, viscosity grade and operating environment.
H2 lubricants are used on equipment where there is no possibility of contact with food, for instance a gearbox sealed away beneath the line. They are less restricted than H1 but still cannot contain heavy metals or substances known to be harmful. H2 is usually cheaper, but only appropriate where contact genuinely cannot happen.
This is where many sites make mistakes. A gearbox, bearing or hydraulic system may look isolated, but if the lubricant could leak, drip, migrate, be sprayed during failure, or be carried by water during washdown, the risk assessment may still point towards H1 rather than H2.
H3 products are used to clean and prevent rust on equipment such as hooks, trolleys and moving parts. They are often edible oils used for corrosion protection.
They are not usually the first category people think about when selecting machinery lubricants, but they can be relevant in food-production environments where corrosion protection is needed on equipment that may come into contact with food.
3H lubricants are direct-contact release agents, applied to surfaces such as grills, trays, moulds or cutting boards to stop food sticking. Unlike H1, these are intended to touch the food.
In practice, H1 and H2 are the two categories you will be choosing between most often for machinery lubrication. The simple rule is this: if contact is possible, use H1. If it is genuinely impossible, H2 is acceptable.
H1 registration confirms a product’s formulation is acceptable. ISO 21469 goes further. It is a hygiene standard that covers the formulation, manufacture and use of lubricants with incidental product contact, and it includes ongoing auditing of how the product is made.
If your customers or auditors expect the highest level of assurance, an ISO 21469 certified product gives you more than H1 alone.
This can be especially relevant for larger food manufacturers, beverage plants, pharmaceutical-adjacent production environments, export-focused firms, or suppliers working under strict retailer standards. In those cases, the cheapest H1 product may not always be the right choice if the customer, auditor or internal quality team expects a higher level of documentation and assurance.
Food safety law does not always name “H1 lubricant” directly, but it does require you to control contamination risks. Under modern food safety management, that means identifying every point where a lubricant could reach the product and managing that risk.
If you operate a HACCP plan, your lubrication points are part of your hazard analysis. Any point with a possibility of incidental contact is a hazard you must control, and switching to an H1 lubricant is the standard way to control it. Schemes such as BRCGS, and the expectations of major retailers and food manufacturers, increasingly treat food-grade lubricants as a baseline requirement rather than a nice-to-have.
So while the law gives you the outcome rather than the exact product, in practice the route to compliance for any contact-risk point is an H1 lubricant.
This applies across a wide range of applications, including hydraulic systems, gearboxes, compressors, chains, bearings, conveyors, mixers, filling lines, bottling equipment and packaging machinery. In each case, the question is not simply “what lubricant does the machine need?” but “could this lubricant ever reach the product, packaging or production surface?”
This idea is out of date, and it costs people money in two directions.
Years ago, food-grade products genuinely lagged behind their industrial equivalents. That is no longer true. Modern H1 lubricants are built on high-quality base oils, including white mineral oils and synthetic polyalphaolefins, and they can deliver wear protection, oxidation stability and temperature performance that competes directly with conventional industrial products. In many high-temperature and high-load applications, a synthetic H1 product will outlast the mineral oil it replaces.
The practical consequence is that you should not avoid H1 out of a fear of poor performance, and you should not assume an H1 product is automatically inferior to the industrial oil sitting next to it. Judge it on its technical data sheet, the same as any other lubricant.
For example, a synthetic food-grade gear oil such as Cassida Fluid GL 220 or Mobil SHC Cibus 220 may be considered where a food-safe product is required for an enclosed gearbox, while a product such as Cassida Fluid HF 46 or Mobil SHC Cibus 46 may be relevant for hydraulic systems requiring an ISO VG 46 food-grade oil. For grease applications, products such as Cassida Grease EPS 2 or Mobilgrease FM 222 may be considered depending on load, speed, water exposure and operating temperature.
The correct choice still depends on the equipment and operating conditions. Food-grade does not remove the need to match viscosity, load capacity, temperature range, water resistance and OEM requirements.
Three things define an H1 product.
This is also why H1 products often carry a premium. The approved ingredient list is narrower, so achieving strong performance within those limits takes more skilled formulation.
That premium can be justified in the right place, but it should still be applied intelligently. A site may need H1 food-grade grease on bearings close to the line, H1 food-grade chain oil on conveyors, and H1 food-grade hydraulic oil on machinery with contamination risk, but may not need to convert every isolated lubrication point if the HACCP assessment shows contact is genuinely impossible.
Work through it in order.
For example, if you are replacing a standard ISO VG 46 hydraulic oil in a food-production environment, you should not simply choose the first H1 hydraulic oil you find. You need to check whether a food-grade hydraulic oil such as Mobil SHC Cibus 46, Cassida Fluid HF 46 or another suitable H1-registered product meets the required viscosity, temperature range, pump compatibility and performance requirements.
The same logic applies to gear oils and greases. A food-grade gear oil such as Cassida Fluid GL 220 may be appropriate in one gearbox but not another if the viscosity, load or OEM requirements differ. A food-grade grease such as Cassida Grease EPS 2 or Mobilgrease FM 222 may be suitable for some bearing applications, but the correct choice depends on speed, load, water exposure, temperature and relubrication intervals.
Food-grade lubricants are used across many different parts of food and beverage production. The most common categories include:
Velocity Edge supports firms across these lubricant categories, including food-grade lubricants, hydraulic oils, gear oils, compressor oils, greases and specialist fluids. This means customers can compare product types more easily and request guidance when they are unsure whether a specific product is appropriate.
Some firms take a simple approach and switch every lubricant on site to H1. That can be sensible in certain environments, especially where it simplifies training, reduces the risk of accidental cross-use and makes audits easier.
However, it can also increase cost unnecessarily if parts of the site have no realistic contact risk. The better approach is to map the risk properly and standardise where it makes sense.
For example, a production line may use H1 food-grade grease and H1 food-grade hydraulic oil near open product areas, while using a different lubricant in a fully isolated utility application where there is no possible route to contamination. The decision should be based on risk, not habit.
The more dangerous mistake is choosing H2 because it looks cheaper, while underestimating the possibility of contact.
A sealed gearbox above a line, a bearing close to a conveyor, a hydraulic hose near open product, or a chain running through a production area may all present a possible contamination route. In those cases, H1 is usually the safer and more defensible option.
If an auditor asks why a non-H1 lubricant is being used, the answer needs to be backed by a proper risk assessment. “It was cheaper” is not a defensible reason.
Choosing the right food-grade lubricant is not just a buying decision. It is a technical decision, a compliance decision and an operational decision.
Velocity Edge helps firms source and compare lubricants across industrial and food-grade applications, including food-grade hydraulic oils, food-grade gear oils, food-grade compressor oils, food-grade greases and specialist fluids. Our platform is designed to make it easier to identify suitable products, compare alternatives and request support when the correct choice is not obvious.
This is particularly useful when replacing existing products, consolidating lubricant lists, sourcing alternatives to hard-to-find brands, or checking whether a proposed product is genuinely suitable for a food or beverage production environment.
If you are unsure whether you need an H1 lubricant, whether an H2 product is acceptable, or whether a specific product such as Cassida Fluid HF 46, Cassida Fluid GL 220, Cassida Grease EPS 2, Mobil SHC Cibus 46 or Mobilgrease FM 222 is suitable for your application, Velocity Edge can support you with technical guidance.
For help choosing the right lubricant, finding a suitable equivalent, or reviewing your food-grade lubricant requirements, contact Velocity Edge at sales@velocity-edge.com.