Celiac safety profile
Box Burger
Hamburger Restaurant · Bar And Grill · Cafe · Cafeteria
637-1 Miyagino, Hakone, Ashigarashimo District, Kanagawa 250-0401, Japan
What you can eat here
Pulled from Gluto's celiac safety report for this location.
✅ Reported safe options
- Gluten-free burgers served with gluten-free buns (including rice-flour bun options)
- Vegetarian burger on a gluten-free bun
- Vegan burger on a gluten-free bun
- Gluten-free bun choices for burgers
⚠️ Risks & cross-contamination
- The facility is not dedicated gluten-free, which means cross-contamination is a possible risk for some menu items.
- Fries and other fried sides are typically not gluten-free due to a shared fryer/oil.
- Staff are described as knowledgeable about gluten-free needs and cross-contamination, and they reportedly discuss safety measures with guests; however, cross-contact risk remains for non-burger items.
- Overall, guests have reported feeling safe when using GF buns and avoiding shared fry options, but caution is still advised for non-burger dishes and fried sides.
Gluto score breakdown
Each axis is scored 0–100 from research + community signals.