Celiac safety profile
Firehouse Subs
Sandwich Shop · Catering Service
1349 London Rd, Sarnia, ON N7S 1P6, Canada
What you can eat here
Pulled from Gluto's celiac safety report for this location.
✅ Reported safe options
- Gluten-free subs served on Schar gluten-free buns. This is the explicitly supported safe-bun option mentioned across reports.
⚠️ Risks & cross-contamination
- Cross-contamination risk exists because the business is not a dedicated gluten-free facility and serves gluten-containing items.
- However, numerous diners describe practices like glove changes, dedicated prep steps, use of foil for toasting, and separate areas/back stations for gluten-free prep, which many reviewers view as strong risk-reduction measures.
- Some variability is noted in stock (e.g., availability of gluten-free bread) and in toaster practices, so experiences may differ by visit or location.
Gluto score breakdown
Each axis is scored 0–100 from research + community signals.