Most store-bought almond milk is a highly processed product. The ingredient list on a typical carton goes well beyond almonds and water, including emulsifiers, thickeners, added vitamins, and sometimes sweeteners. The manufacturing process involves blanching, grinding, filtering, fortifying, ultra-pasteurization, and aseptic packaging. By most definitions of “processed food,” commercial almond milk qualifies.
That said, the degree of processing varies significantly between brands, and homemade almond milk is a different story entirely. Understanding what actually happens during production helps you decide whether the processing matters for your health.
How Commercial Almond Milk Is Made
Factory production starts with harvesting and blanching raw almonds, a thermal process that removes the skins. The blanched almonds are then ground into a fine paste and mixed with large volumes of water. This slurry is filtered to remove the solid pulp, leaving behind a smooth liquid. The liquid is then fortified with vitamins and minerals (typically calcium and vitamins D and E), blended with stabilizers and emulsifiers, and finally packaged.
Before packaging, the liquid is ultra-pasteurized, meaning it’s rapidly heated to about 280°F (138°C) and then quickly cooled. This step kills bacteria and extends shelf life considerably. Shelf-stable cartons can sit unopened for months, while refrigerated versions last 7 to 10 days after opening. Compare that to homemade almond milk, which spoils in 3 to 7 days because it skips pasteurization entirely.
The actual almond content in most commercial brands is surprisingly low, often around 2% to 3% almonds by weight. The rest is primarily water plus whatever additives each brand chooses to include.
What’s in the Ingredient List
Flip over a carton of almond milk and you’ll typically find several categories of additives beyond almonds and water.
- Thickeners and stabilizers: Gellan gum, guar gum, xanthan gum, carob bean gum, and sometimes carrageenan. These keep the liquid from separating and give it a creamy mouthfeel closer to dairy milk.
- Emulsifiers: Lecithin (often sunflower-derived) helps fat and water stay blended rather than splitting into layers.
- Fortification nutrients: Calcium carbonate or tricalcium phosphate for calcium, plus synthetic forms of vitamins D2, E, and sometimes A.
- Sweeteners and flavors: Unsweetened varieties skip added sugar, but “original” or flavored versions can contain anywhere from 4 to over 20 grams of added sugar per serving. Natural flavors are also common.
Not every brand uses all of these. Some “clean label” almond milks limit their ingredients to almonds, water, and a single stabilizer. Others pack in a longer list. Reading the label is the only way to know what you’re getting.
Are the Additives a Concern?
Most of the gums and emulsifiers in almond milk are approved by food safety regulators and consumed widely in many processed foods. But “approved” and “harmless in every context” aren’t the same thing, and research on some of these additives has raised questions.
Guar gum, one of the most common thickeners in plant milks, has shown unexpected effects in animal research. A study published in PMC found that mice fed a guar gum-containing diet developed increased susceptibility to both acute and chronic intestinal inflammation. The effect appeared to be driven by changes in gut bacteria: when researchers wiped out the gut microbiome with antibiotics, the increased inflammation reversed. The guar gum diet also reduced production of an immune signaling molecule in the colon by more than threefold. This is a single animal study, not proof that the small amounts in your almond milk will cause problems, but it does suggest these additives interact with gut biology in ways that aren’t fully neutral.
Carrageenan has drawn more public attention. It remains FDA-approved as an emulsifier, stabilizer, and thickener in food, with no regulatory changes since 2017. However, enough consumer concern exists that many almond milk brands have voluntarily removed it from their formulas in recent years. If you want to avoid it, check the label: brands that still use it are required to list it.
Sweetened vs. Unsweetened Versions
This distinction matters more than most people realize. Unsweetened almond milk contains no added sugars and is very low in calories, typically 30 to 50 per cup. Sweetened or flavored versions can add 4 to over 20 grams of sugar per serving, which puts some of them in the same range as a glass of chocolate milk. If you’re choosing almond milk partly for its low-calorie profile, the sweetened variety undermines that advantage quickly. Unsweetened is the version worth comparing to dairy.
Homemade Almond Milk Is Barely Processed
If the processing level bothers you, homemade almond milk is a straightforward alternative. The basic method is soaking raw almonds in water, blending them, and straining out the solids through a fine mesh bag. The result is two ingredients: almonds and water. No gums, no emulsifiers, no pasteurization.
The trade-off is practical. Homemade almond milk separates in the fridge (you just shake it), lacks the added calcium and vitamin D that make commercial versions nutritionally competitive with dairy, and spoils within 3 to 7 days. You also lose the convenience of shelf-stable storage. For people who drink almond milk daily and rely on it as a calcium source, homemade versions may fall short nutritionally unless you’re getting those nutrients elsewhere in your diet.
How to Choose a Less Processed Option
If you prefer store-bought but want to minimize processing, a few label habits help. Look for brands with short ingredient lists: almonds, water, and perhaps one gum or a vitamin blend. Avoid versions with multiple thickeners, natural flavors, and added sugar. Some brands now market “simple” or “clean” formulas with as few as four or five ingredients.
Choosing unsweetened over original or vanilla eliminates added sugars entirely. And if the fortification is important to you (it often is for people replacing dairy), check that the calcium and vitamin D levels listed on the nutrition panel are close to what you’d get from cow’s milk, roughly 300 mg of calcium and 100 IU of vitamin D per cup. Shake the carton well before pouring, since added calcium tends to settle at the bottom.