Opened food shelf-life · UK & US

Most opened food outlives your guess.

UK homes bin roughly £730 of food a year — much of it still safe to eat (WRAP research). Search any opened food and get the real fridge window, spoilage signs, and freezing advice.

3178+ foods covered · sourced from UK FSA and US FDA/USDA guidance · free, no signup

Plant-Based

Tempeh

US guidance

Wondering how long your homemade tempeh really lasts? Don't risk food poisoning! Check the precise UK and US safety guidelines to keep your plant-based meals safe and delicious.

Best quick answer

4 days

If opened today

Aim to use by 16 Jul 2026

What that means

Plan to finish it this week.

Use this as a planning window, then check the real-world spoilage signs below before eating.

Make Tempeh last the full window

Do

  • Refrigerate promptly after each use, at 5°C / 40°F or below.
  • Use a clean utensil every time you take a portion.
  • Keep it sealed — the original lid or an airtight container.
  • Freeze it before the window closes if you will not finish it — Portion into airtight containers or freezer bags before freezing.

Don't

  • Leave it out on the counter while cooking or serving.
  • Double-dip or return unused portions to the container.
  • Store it in the fridge door if you open the fridge often — it is the warmest spot.
  • Taste it to "test" safety. If in doubt, throw it out.

How Tempeh compares with other plant-based

Opened storage windows vary a lot within a category. Days shown are after opening, refrigerated.

Food UK days US days Freezable
Tempeh 3 4 Yes
Tofu 3 3 Yes

Where this guidance comes from

The Tempeh window blends official US food-safety guidance with typical manufacturer opened-storage instructions. The label on your specific product always wins if it is stricter.

Storage note

Both regions treat tempeh as perishable, but US guidelines often allow for slightly longer storage if refrigerated properly.

Check before eating

Look

Develops a slimy film or visible mold growth on the surface.

Smell

Emits a strong, sour, or fermented odor.

Texture

Becomes excessively slimy, mushy, or loses its firm, cake-like structure.

Freezing

Yes. Portion into airtight containers or freezer bags before freezing.

UK vs US

UK mode uses 3 days after opening. US mode uses 4 days after opening.

US mode is 1 day longer than UK mode on this item.

FDA/USDA Guidelines is selected right now.

Source: US FDA/USDA Guidelines & Manufacturer Expectations

Trust and method

TossOrKeep editorial desk

TossOrKeep food storage policy review · Reviewed 12 Jul 2026

Windows are conservative planning ranges built from public UK FSA and US FDA/USDA guidance, then tightened when typical manufacturer labels run shorter.

Cold storage, clean utensils, and label-first handling win over memory or social-media myths.

This page is specific to Tempeh. Similar foods in Plant-Based can still differ.

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Frequently Asked Questions

How long does Tempeh last after opening?

When stored correctly according to guidelines, it generally lasts around 4 days. Always rely on your senses if it looks or smells off.

How can I tell if Tempeh has gone bad?

The best way is to check its appearance and smell. Develops a slimy film or visible mold growth on the surface. Emits a strong, sour, or fermented odor.

Can you freeze Tempeh?

Yes, you can. Portion into airtight containers or freezer bags before freezing.

Also in Plant-Based

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Did you know?

If you will not finish Tempeh in time, freezing before the window closes is the easiest way to avoid binning it.

Based on UK FSA / US FDA storage guidance.

Cut waste further

People checking Tempeh usually need better storage, clearer labels, or a more visible fridge setup.

These links open Amazon UK searches for relevant storage tools. They are suggestions, not sponsorships.