Hummus is moist, rich and only mildly acidic, so it's a refrigerated food with a short life: it sours, grows yeast and mold, and its surface dries or weeps. Lemon juice lowers its pH and buys a little time; cold storage and a sealed tub buy the rest. Commercial hummus that keeps for months has most often been through high-pressure processing, a different product. In the example below, a Dearborn dip maker's sealed tubs passed every test through day 14, and they say use by 10 days, a 25% margin. Below is what ends hummus's shelf life, how storage changes it, the study, the date on the label, and a free template.
The short version
- Hummus is a refrigerated food with a short life.
- It sours, grows yeast and mold, and dries or weeps.
- Lemon juice lowers the pH and helps a little.
- Sealed tubs, cold storage, clean equipment.
- Run a real-time study, refrigerated, with lab counts.
- Print "Keep refrigerated" and a use-by date.
- TaroStack gives every batch its date from the shelf life you set. More below.
What ends its shelf life
| What ends it | What happens | What slows it |
|---|---|---|
| Yeast and mold | Grow on moist hummus, especially once opened | Clean equipment; cold; sealed tubs; a lower pH |
| Souring | Flavor turns sharp and fermented | Cold storage; fresh chickpeas cooked and cooled fast |
| Drying and weeping | Surface dries, or oil and water separate | Sealed tubs; a film of oil on top |
| Warmth | Speeds every change | Kept at 41°F or below from kitchen to shelf |
What the tub can say about fat is in low saturated fat claim, and which foods need the cold in tcs foods list.
How it's stored
| Stored | In the example's tests | On the label |
|---|---|---|
| Sealed tub, refrigerated at 34 to 38°F | Passed every test through day 14 | Use by 10 days |
| Opened, refrigerated | Not part of the study | "Use within 4 days of opening" |
| Room temperature | Not tested: kept cold | "Keep refrigerated" |
The opened-tub line is the maker's advice; a spoon dipped in and out brings in what grows fastest.
An example: a shelf life study
Cedar & Olive Dips, the made-up dip maker in Dearborn, Michigan, I use in these examples, kept sealed 10-ounce tubs of classic hummus from one batch in the cooler, tasted one and sent one to a lab at each pull:
| Test | Pass if | Day 0 | Day 3 | Day 7 | Day 10 | Day 14 | Day 21 |
|---|---|---|---|---|---|---|---|
| Taste score, 1 to 9 | at least 6 | 9 | 9 | 8 | 7 | 6 | 4 |
| Sour or off odor, 1 to 5 | at most 2 | 1 | 1 | 1 | 2 | 2 | 4 |
| Yeast and mold, lab, CFU/g | at most 1000 | 10 | 20 | 100 | 300 | 800 | 5000 |
| pH | at most 4.6 | 4.4 | 4.4 | 4.4 | 4.4 | 4.5 | 4.6 |
| All pass? | Pass | Pass | Pass | Pass | Pass | Fail |
Everything passed through day 14; at day 21 the taste fell below 6, a sour smell came through and the yeast and mold count passed the limit. Taking a 25% margin off day 14 gives 10 days. How the pulls and margin are planned is in shelf life testing.
The date on the label
Refrigerated hummus is perishable, so the maker prints "Use by" and "Keep refrigerated". In California, food made from July 1, 2026 that shows a date uses "USE by" for a safety date, in sell by date law, and how to write the date is in best by date format.
Get the template
Download the hummus shelf life study template. One sheet: the product, the lot tested, the day it was made, how it's stored and the margin to leave; then each test with its limit and the result at each pull. It marks each pull pass or fail, finds the last day everything passed, takes the margin off, and gives the shelf life for the label and the date for a batch made today. It's an ordinary Excel file with no macros, and it works in Google Sheets, LibreOffice and Numbers.
Where this stops working
The study gives one date for one dip. Hummus, baba ganoush, tzatziki and muhammara, batches three times a week, and grocers that want seven days left on delivery: someone has to date each batch and send the oldest tubs first.
How TaroStack does it
TaroStack gives every batch its date from the shelf life you set, and sends the oldest out first.
Dates from the shelf life. Each dip carries its shelf life in days, and each batch's lot gets its production date and the date that follows from it.
First-expired-first-out. Orders take the oldest lots first by default, and a grocer can be set to take only stock with enough days left.
What's coming up. A forecast shows what will expire unsold and what it costs, and anything thrown out is recorded with its reason, expired or spoiled, so waste shows by item.
| The job | Spreadsheet | In TaroStack |
|---|---|---|
| The date on a batch | Worked out by hand | From the shelf life, on the lot |
| Which batch goes out first | Dates on tape | First-expired-first-out |
| Stock with enough days for a grocer | Checked by hand | The customer's shelf-life rule |
| What expired last month | Not counted | Waste by reason |
Lots, dates, first-expired-first-out and the expiry forecast are on every plan, from $49 a month. The first 30 days are free, with no credit card. If you'd like a hand setting up, ask, and we'll do it with you.