Bethlehem Alpha: the entry surface-mix bench torch

The Bethlehem Alpha is Bethlehem Burners’ entry-level, single-stage surface-mix bench torch — the gentle way into a line known for quiet, oxygen-efficient flames and precise mounting hardware. It’s aimed squarely at beads and starter work, and because it shares the family’s flame character, learning on the Alpha sets up a clean step up to a Bravo or Champion when your work grows.

What the surface-mix flame gives you

Like the rest of Bethlehem’s burners, the Alpha is surface-mix: fuel and oxygen meet at the face of the torch rather than premixing inside it. The practical payoff is a quiet, oxygen-efficient flame that’s calm at startup and far less prone to the backfire “pop” of a combination torch — a big part of why Bethlehem is trusted in scientific and production studios. For the full explanation of why that matters, see surface mix vs premix torches.

Who the Alpha is for

The Alpha is built for beginners and improving intermediates doing beadwork and starter soft glass, with room for small boro. It’s the most approachable burner Bethlehem makes, and a sensible first “real” torch for someone who wants the brand’s quiet flame and hardware without stepping up to a larger model. If you’re weighing where to start, our best beginner glass torch guide puts it in context, and the Alpha vs Bravo vs Champion comparison shows exactly what you gain by moving up the line.

Glass, fuel, and oxygen

The Alpha handles soft (soda-lime) glass and small boro and burns propane or natural gas with oxygen. Bethlehem’s surface-mix burners are well regarded for sipping oxygen, which makes an entry model like this a natural candidate for an oxygen concentrator — but Bethlehem doesn’t publish the Alpha’s exact oxygen flow (LPM) or jet count, so confirm those specifics against your supply before you buy. See how many LPM does my torch need and oxygen concentrator vs tanks.

The hardware advantage

Even at the entry level, the Bethlehem appeal isn’t only the flame — it’s the signature swivel and rack-and-pinion adjustment that let you position and angle the torch precisely and return to a known setting. That repeatability removes a whole category of variability from long sessions and is a real reason the brand is trusted for exacting work.

Where it sits in the Bethlehem lineup

The Alpha is the floor of the surface-mix range. Above it sit the Star (a touch more heat for large beads and 2in marbles), the STACKS (which fills the gap up to the Bravo), and then the two-stage Bravo and Champion. Because the flame behavior is consistent across the family, moving up doesn’t mean relearning your torch.

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 arrestors on both lines, didymium eyewear, and ventilation. New to plumbing a torch? Start with the fittings, hoses & connectors guide and the glass torch safety setup guide.

Editor’s note: the catalog lists the Alpha as Bethlehem’s entry surface-mix bench burner but doesn’t publish its jet count, exact oxygen flow (LPM), or current pricing. Those specifics, and any current variants, are best confirmed with Bethlehem before purchasing.