No, not all orange juice is pasteurized. The vast majority of orange juice sold in the United States is heat-treated to kill harmful bacteria, but unpasteurized options do exist, particularly at farmers markets, juice bars, and some grocery store refrigerator sections. Understanding where the exceptions are and how to spot them takes just a few label-reading habits.
What Federal Law Actually Requires
The FDA does not mandate that all juice be pasteurized. Instead, it uses a two-part regulatory system. First, any juice manufacturer (beyond small retail operations) must follow a food safety framework called HACCP and use processing methods that reduce dangerous pathogens by 100,000-fold, a standard known as a 5-log reduction. Heat pasteurization is the most common way to hit that target, but it is not the only one.
Second, any juice that has not been processed to meet that pathogen-reduction standard must carry a specific warning label. This rule has been in effect since 1998. The warning tells consumers that the product has not been treated to destroy harmful bacteria and that children, the elderly, and people with weakened immune systems face the greatest risk.
There is one important gap: juice made and sold at retail establishments, meaning places like juice bars, smoothie shops, and farmers market stands that sell directly to consumers, is exempt from the HACCP processing requirement altogether. These sellers are not required to pasteurize, and because they often serve juice by the cup rather than in sealed containers, you may not see a warning label at all.
Where Unpasteurized Orange Juice Shows Up
You’re most likely to encounter raw orange juice in four places: farmers markets, juice bars, health food stores with in-house juicing stations, and some specialty grocery brands that market “cold-pressed” or “raw” juice in the refrigerated section. These products are typically kept cold and have a short shelf life, often just a few days. The short window is itself a clue: pasteurized orange juice in the refrigerator case generally lasts several weeks unopened, while shelf-stable cartons can last months at room temperature.
If you’re buying a sealed bottle or carton from a major brand at a regular grocery store, it is almost certainly pasteurized. The big names in orange juice all use heat treatment as part of their standard processing. The products that skip pasteurization tend to be smaller-batch, locally produced, and priced higher.
How to Tell From the Label
Pasteurized juice will often say “pasteurized” on the label, though it is not always prominently displayed. The more reliable signal is the absence of a warning. If a packaged juice does not carry an FDA-mandated warning about untreated juice and harmful bacteria, it has been processed to meet the 5-log pathogen reduction standard.
Unpasteurized packaged juice, on the other hand, is required to display that warning. Look for it near the nutrition facts or ingredient list. Some brands use language like “raw,” “cold-pressed,” or “never heated” as marketing terms. These phrases are strong indicators the juice has not been thermally pasteurized, though some cold-pressed juices use an alternative method called high pressure processing (more on that below).
High Pressure Processing: Pasteurized or Not?
High pressure processing, or HPP, is a nonthermal preservation method that kills bacteria by subjecting sealed juice bottles to extreme pressure rather than heat. The juice is never heated, so brands using HPP often market their products as “cold-pressed” or “raw.” Technically, HPP is not pasteurization, which by definition involves heat. But it can achieve the same 5-log pathogen reduction the FDA requires, meaning HPP-treated juice does not need to carry the unpasteurized warning label.
For the consumer, HPP juice sits in a middle category. It has a fresh-like taste and appearance closer to raw juice, and taste tests consistently show people prefer its flavor and consistency over heat-treated versions. Studies on fruit purees processed with HPP found they were microbiologically stable for at least four months under refrigeration, comparable to mildly heat-pasteurized products. HPP also retains more of the enzymes that heat destroys, while maintaining similar levels of antioxidants and beneficial plant compounds.
If you want juice that tastes fresher but still meets the FDA’s safety standard, HPP products are worth looking for. They’ll typically be in the refrigerated section and cost more than conventional pasteurized juice.
Why Pasteurization Matters for Safety
Unpasteurized orange juice can harbor Salmonella, E. coli O157:H7, and the parasite Cryptosporidium. These are not hypothetical risks. At least 15 juice-related outbreaks have been documented in the United States, and the pathogens involved can survive in orange juice’s acidic environment far longer than most people assume. Salmonella strains have been shown to survive in orange juice for up to 27 days at typical acidity levels, and up to 60 days when the juice is slightly less acidic.
The largest Salmonella outbreak tied to unpasteurized orange juice occurred in 1999, when a single brand sickened over 200 confirmed cases across 15 states and two Canadian provinces. Testing of the factory’s juice turned up five different Salmonella strains, not just the one initially identified. A separate outbreak linked to unpasteurized apple juice killed one child and caused kidney failure in 14 others. These incidents were a major driver behind the FDA’s 1998 warning label rule and 2001 HACCP requirements.
For healthy adults, the risk from a single glass of unpasteurized juice is low in absolute terms. But for young children, older adults, pregnant women, and anyone with a compromised immune system, the consequences of infection can be severe.
Does Pasteurization Destroy Nutrients?
This is one of the main reasons people seek out raw juice, and the answer is more nuanced than either side of the debate suggests. Research on industrial-scale orange juice processing found that mild and standard pasteurization actually slightly increased the measurable vitamin C content, because heat releases vitamin C trapped in the pulp and solid parts of the orange. The vitamin C you care about, in other words, is not significantly damaged by pasteurization.
Where pasteurization does take a toll is on certain plant compounds in the pulp. Some antioxidant and anti-inflammatory compounds, particularly certain phenolic acids and flavonoids, degrade by roughly 28 to 35 percent during standard heat treatment. These are not nutrients listed on the label, but they do contribute to the overall health benefits of orange juice. Whether that reduction matters enough to justify the safety trade-off of drinking raw juice is a personal calculation, but it’s worth knowing that the headline nutrient, vitamin C, holds up well through pasteurization.