Shake Shack
Shake Shack is a national fast-casual chain known for burgers, chicken sandwiches, crinkle fries and shakes. It publishes an allergen facts PDF that marks each item for milk, eggs, peanuts, wheat, shellfish, soy, tree nuts, fish, gluten and sesame, including a marker for items processed in a facility where cross-contact is possible. It suits diners who want an item-by-item chart, while noting this document is dated November 2021 and is the oldest source in this set.
The chain's own allergen material
- Evidence tier
- Allergen menu documented
- Format
- pdf-matrix · document dated 2021-11-02
- Website
- www.shakeshack.com
Source: Shake Shack Allergen Facts · Last checked: 2026-10-28
The allergen matrix, as published
Shake Shack addresses 10 of the 10 allergens we track in its published allergen material. "Not addressed" means the chain's document does not cover that allergen — it does not mean the allergen is absent from the food.
| Allergen | Addressed in the chain's published material |
|---|---|
| Gluten | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Milk | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Egg | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Peanut | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Tree nut | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Fish | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Shellfish | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Soy | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Wheat | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
| Sesame | Yes — covered in the published material Shake Shack Allergen Facts · 2026-10-28 |
The chain's own cross-contact statement
Chain states the document does not account for cross contact that may occur during preparation or from substituting alternative products.
Quoted/summarised from Shake Shack Allergen Facts, checked 2026-10-28.
The protocol, in full: Chain protocol
| Cross-contact note | Document states its review does not account for cross contact that may occur during preparation or as a result of substituting alternative products, and marks items processed in a factory where possible cross-contact occurs. Shake Shack Allergen Facts · 2026-10-28 |
|---|---|
| Dedicated fryer | Not documented — not published in source (not documented) Shake Shack Allergen Facts · 2026-10-28 |
| Dedicated prep area | Not documented — not published in source (not documented) Shake Shack Allergen Facts · 2026-10-28 |
| Staff training | Not documented — not published in source (not documented) Shake Shack Allergen Facts · 2026-10-28 |
Good to know before you book
- Chain states the document does not account for cross contact that may occur during preparation or from substituting alternative products. — Shake Shack Allergen Facts, 2026-10-28
- Document dated November 2, 2021 — stale relative to the rest of this set; menu and formulations may have changed since. No contact phone published in the document. — Shake Shack Allergen Facts, 2026-10-28
Questions diners ask about Shake Shack
Does Shake Shack publish an allergen menu or matrix?
Yes — Shake Shack publishes allergen material in pdf-matrix form, linked from this page and last checked on 2026-10-28. It addresses 10 of the 10 allergens we track.
Which allergens does Shake Shack's published material not cover?
It does not address: none — all 10 are addressed. Not addressed means the chain's document is silent on that allergen — not that the allergen is absent from the food.
If Shake Shack publishes a protocol, does every location follow it the same way?
A chain document is a ceiling, not a location guarantee. Locations vary in staff, equipment and practice, so a location listing on this site carries its own tier and its own last-checked date, and the questions on the visit-prep card are the ones to ask at the location you are visiting.
What does Shake Shack itself say about cross-contact?
Chain states the document does not account for cross contact that may occur during preparation or from substituting alternative products.
Source & freshness
Source: Shake Shack Allergen Facts · Last checked: 2026-10-28
Report a change or an error — reports are checked and logged on this page.
Change log
- 2026-10-28 — Chain protocol profile published from the chain's own published allergen material (datasets v1 + expansion pass 2, merged Oct 28, 2026).
Other chains
- Chipotle — Allergen menu documented, last checked 2026-10-28
- Olive Garden — Allergen menu documented, last checked 2026-10-28
- McDonald's — Allergen menu documented, last checked 2026-10-28
- P.F. Chang's — Allergen menu documented, last checked 2026-10-28
- Chick-fil-A — Allergen menu documented, last checked 2026-10-28
- Wendy's — Allergen menu documented, last checked 2026-10-28
Shake Shack — visit-prep card (chain level)
Allergen menu documented · Last checked 2026-10-28 · Source: Shake Shack Allergen Facts
Chain-level record — practices vary by location. Confirm at your location before ordering.
- Allergen menu
- https://shakeshack.com/sites/default/files/2021-11/SHA_AllergenFacts_ShakeShack- November 2, 2021V2.pdf
Allergens the chain's material addresses
Gluten, Milk, Egg, Peanut, Tree nut, Fish, Shellfish, Soy, Wheat, Sesame
The chain's cross-contact statement
Chain states the document does not account for cross contact that may occur during preparation or from substituting alternative products.
Questions to ask at your location
- Is the fryer shared with breaded or battered items, and what else is cooked in that oil?
- Is there a separate prep area, boards and utensils for allergy orders?
- How are staff trained on food allergies, and how often is that training refreshed?
- How is an allergy order flagged and communicated to the kitchen, so it cannot be mixed up?
- What do you do to prevent cross-contact during prep, cooking and plating?
ConfidentDiner collects allergen and preparation information from restaurants’ published materials, from restaurants themselves, and from diners. Information is dated and sourced, but menus, ingredients, suppliers, staff, and kitchen practices change without notice, and cross-contact can occur in any non-dedicated kitchen. Nothing on this site is medical advice or a guarantee that any restaurant or dish is safe for any individual. Always tell the restaurant about your allergy, confirm current practices directly before ordering, and make your own decision with your medical professional’s guidance.