Bethlehem Bravo Sharp Flame: the Bravo with a Sharp Flame centerfire

The Bethlehem Bravo Sharp Flame is the two-stage, surface-mix Bravo fitted with Bethlehem’s Sharp Flame centerfire. It’s the same compact, whisper-soft, oxygen-efficient bench burner that replaced the Barracuda, but with a crisper, more focused inner flame for makers who want more bite in the center for detail.

What the surface-mix flame gives you

Like all of Bethlehem’s burners, the Bravo Sharp Flame is surface-mix: fuel and oxygen meet at the face of the torch rather than premixing inside it, for a quiet, calm, low-backfire flame that’s gentle on colors. For the background on why that design is prized, see surface mix vs premix torches; its quiet character also makes it a strong shared-studio pick, covered in our quietest torches for shared studios roundup.

What the Sharp Flame centerfire adds

The Sharp Flame centerfire is Bethlehem’s crisper, more focused inner-flame option. On the Bravo, it sharpens the centerfire for finer detail work while leaving the broader outer fire and the burner’s overall quiet, two-stage behavior unchanged. If you like the Bravo but want a more pointed inner flame, this is the configuration to ask about; if you want the standard centerfire, the regular Bravo covers it.

Glass, fuel, and oxygen

The Bravo Sharp Flame handles soft (soda-lime) glass and boro for small-to-medium work and burns propane or natural gas with oxygen. The Bravo family is known for sipping oxygen and running on concentrators as well as tanks, but the full two-stage flame wants more oxygen than a single small concentrator delivers. Bethlehem publishes this variant’s numbers: a 6-jet Sharp Flame center fire, a 12-jet outer fire with 36 oxygen ports (18 gas jets total) on a 1 inch face, and 30 LPM of tanked oxygen at full flame (8 to 20 psi), a ceiling rather than a minimum. It works boro rod to 30 mm and heavy-wall tube to 42 mm. See how many LPM does my torch need and oxygen concentrator vs tanks.

The hardware advantage

Like the rest of the line, it carries Bethlehem’s swivel-base mounting, so you can set a precise, repeatable angle and height, a real comfort over long sessions.

Where it sits in the Bethlehem lineup

The Bravo Sharp Flame is a centerfire variant of the Bravo, sitting in the same place in the surface-mix range, above the entry Alpha, Star, and STACKS, and below the stronger two-stage Champion (which also offers a Sharp Flame variant) and the multi-stage Grand. Compare the tiers in Alpha vs Bravo vs Champion.

Before you buy

Budget for the whole system, not just the torch: oxygen (a concentrator or tanks), the correct propane or natural-gas regulator, flashback protection matched to your torch and gas supply, didymium or boro-rated eyewear matched to your glass, and ventilation. New to plumbing a torch? Start with the fittings, hoses & connectors guide and the glass torch safety setup guide.

Editor’s note: this is the Bravo with Bethlehem’s Sharp Flame centerfire. Jet, flow, and capacity figures reflect Bethlehem’s own product page, checked July 2026, and the catalog carries Bethlehem’s $1,284 manufacturer-direct list price. Prices and configurations change, so confirm current details with Bethlehem before purchasing.