Once opened, vegan mayo lasts about 3 months in the fridge — Hellmann’s own Vegan Mayo product spec confirms this directly. Unopened, it’s rated for 8 months from the date of manufacture, similar to traditional mayonnaise.
How long does vegan mayo last in the fridge?
Hellmann’s own product specification for their Vegan Mayo states: “From date of manufacture: 8 months. Once opened: 3 months refrigerated. After opening, keep refrigerated and use within 3 months.” That’s a specific, confirmed figure directly from the manufacturer for their vegan formulation.
This is broadly in line with traditional mayonnaise, which is also commonly rated at 2–3 months once opened. Vegan mayo achieves a similarly long shelf life through the same basic mechanism — a combination of oil, acid (vinegar or lemon juice), and salt that creates an environment bacteria struggle to grow in — even without the eggs found in traditional mayo.
As with any condiment, don’t leave an open jar out of the fridge for more than two hours per USDA’s Danger Zone guidance.
Can you freeze vegan mayo?
Not recommended. Freezing breaks mayo’s emulsion — whether vegan or traditional — causing it to separate into a watery, grainy mess once thawed that doesn’t properly recombine. This applies to vegan mayo just as much as the egg-based version. If you’re not going to finish a jar within the 3-month window, it’s better to buy a smaller size than to try freezing the excess.
How to tell if vegan mayo has gone bad
- Smell: a sour, rancid odor beyond its normal mild, tangy smell
- Color: yellowing or darkening beyond its normal pale color
- Texture: separation, wateriness, or graininess that doesn’t stir back together
- Mold: any visible mold means discard the entire jar, not just the affected area
Storage tips
- Refrigerate immediately after opening
- Use clean, dry utensils every time to avoid introducing bacteria
- Keep the lid tightly sealed between uses
- Store in the main body of the fridge rather than the door, where temperatures fluctuate more
Why isn’t vegan mayo covered by USDA?
FreezerOrFridge.com’s 732 core pages pull their storage times from the USDA FoodKeeper database, which includes traditional egg-based mayonnaise but doesn’t currently include vegan/plant-based mayo — a newer product category that hasn’t made it into that federal dataset yet. This page instead relies on Hellmann’s own published Vegan Mayo specifications.
Related foods
Storage guides for related condiment pages:
Mayonnaise (Opened) · Vegan Butter · Browse all Condiments storage guides →
→ Check storage times for 732+ other foods on FreezerOrFridge.com
Author Bio: Written by our food storage team, using manufacturer guidance for products not yet in the USDA FoodKeeper database.