The Trangia storm cooker is the design that has outlasted every fashion in camp cooking since 1925, and the reason is the windshield. It is not an accessory bolted on the side — it is the pot stand, and it wraps the flame completely. A canister stove in a 20 mph wind spends its fuel heating the air. This does not.

Everything nests: the windshield, the burner, the pans, the handle. One bundle under one strap, Ø185 × 100 mm.

This is the 27-3 UL/GB — the 1–2 person 27 Small, no kettle, Ultralight aluminum pots and a non-stick frypan.

What is in the box

• Series 27 Small — 1–2 people
• Packed size Ø185 × 100 mm
• Windshield, upper and lower — Ultralight aluminum
• Saucepans — 1 L (33.8 fl oz) inner and 1 L (33.8 fl oz) outer saucepans in Ultralight aluminum
• Frypan Ø180 mm (7.09 in) — non-stick
• No kettle in this model
• Burner Storm gas burner, 2300 W / 7850 BTU — included
• Pot handle and 61 cm strap included
• Made in Sweden
• Weight — not published by Trangia; see the note below

The gas burner

This set ships with Trangia’s Storm gas burner — their first in-house-designed burner, running a threaded EN417 propane/butane cartridge. 2300 W / 7850 BTU, 1 liter boiled in 3.5 minutes, 170 g, adjustable flame. Certified CE 0063-DP-3071 and AGA 9349.

Faster and more controllable than spirit; the trade is that you are now carrying a pressurised cartridge and it loses output in real cold. The cartridge is not included — we do not ship fuel.

Trangia publish no dimensions for this burner and never mention a piezo igniter, so assume you are lighting it yourself.

Reading Trangia’s model numbers

Trangia do not explain their own numbering anywhere, and it catches people out, so here it is. The number after the dash tells you what is in the box:

An odd number means no kettle. An even number means a kettle is included. The number then says which parts are upgraded:

• 1 / 2 — everything in the base material
• 3 / 4 — non-stick frypan, base-material pots
• 5 / 6 — non-stick pots and frypan
• 7 / 8 — Ultralight windshield with hardanodized pots and frypan
• 9 / 0 — Ultralight windshield, hardanodized pots, non-stick frypan
• 21 / 23 — Duossal. Both are odd, so Trangia make no kettle-equipped Duossal set

Two consequences worth knowing: the 7, 8, 9 and 0 models exist only in the UL/HA combination — there is no “25-7 UL” or “25-7 HA.” And the 35 prefix is not a size: a 35-5 is a full 25 Large set with a painted windshield.

One note on the article number. Trangia do not publish article numbers for their gas-burner variants — on every set page the gas version’s number field is empty, and only the spirit version carries one. The number in our data is the distributor’s. The product is real and Trangia sell it; the number just is not theirs.

Trangia’s four materials, and which one you want

This is the choice that actually matters when you buy Trangia cookware, so here it is in their own terms:

• UL — Ultralight. Aluminum alloy 5005, which Trangia says is “50 percent stronger than regular aluminum.” Lightest, conducts heat best, cheapest. Trangia’s own caution: “soft material, prone to denting.”
• HA — Hardanodized. A surface treatment on the same aluminum that makes it hard and scratch-resistant. The selling point is Trangia’s own: it weighs the same as UL, because “the treatment penetrates the material.” Easier to clean. It is still an aluminum cooking surface.
• NS — Non-stick. UL aluminum discs with a coating. Easiest to clean, least durable surface. Wooden or plastic utensils only, no steel wool, and Trangia say outright that “the frying pan may need to be replaced from time to time.”
• DS — Duossal 2.0. A laminate of aluminum and stainless pressed together — 0.8 mm total, of which 0.3 mm is the stainless interior. Heaviest and dearest. It is the one to buy if you cook acidic or salty food, because stainless, not aluminum, is what touches your dinner.

One caution Trangia publishes and we are going to repeat. On bare and anodized aluminum: “avoid cooking and storing acidic or salty foods in aluminum vessels for extended periods of time,” and maintain the surface to prevent scratches “that may increase the risk of metal release.” Tomato sauce overnight is the thing to avoid. If that is how you cook, the Duossal version of this pan has a stainless interior and sidesteps it entirely.

Looking after the non-stick

Wooden or plastic utensils only. No steel wool, no Scotch-Brite. Do not overheat it and never leave it empty on the burner. Trangia suggest oiling it lightly before first use, and they are honest that “the frying pan may need to be replaced from time to time” — a coating is a wear part.

About the coating, and why we are not going to tell you it is PFAS-free. Trangia describe their non-stick as “a type of PTFE.” Elsewhere on their own site they also describe it as “PFAS-free and PFOA-free… its main component is PTFE.” PTFE is a PFAS under the usual definition, so those two statements cannot both be right as written. We are publishing the part they are consistent about — it is a PTFE-type non-stick coating — and saying nothing about PFAS in either direction. No brand name for the coating is published anywhere. If this decides the purchase for you, ask us and we will put it to Trangia in writing.

25 Large or 27 Small — which system is this for?

Trangia build two sizes and the parts are not interchangeable:

• 25 Large — 3–4 people. Packs to Ø220 × 105 mm. 1.5 L inner and 1.75 L outer saucepans, Ø220 mm frypan, 68 cm strap.
• 27 Small — 1–2 people. Packs to Ø185 × 100 mm. Two 1 L saucepans that nest one inside the other, Ø180 mm frypan, 61 cm strap.

A 27 pot will not serve a 25 system and the windshields are different diameters. Check which stove you own before you order a part for it.

Care

Not dishwasher safe, and this is Trangia’s own position rather than ours: “the chemicals used in dishwasher detergent destroy the aluminum’s surface.” Hand wash with washing-up liquid and a brush or soft sponge. No steel wool and no scouring pads on this one — it is coated.

Do not store food in the pots, and do not boil dry: Trangia warn that “without food or liquid, it can melt.” Keep plastic parts away from the flame.

Induction and oven use are not published by Trangia, for any of their cookware, so we are not going to claim either.

Why there is no weight in the specifications. Trangia deliberately publish none for their stove sets, and their reason is a good one: “the weight of each stove set varies and is most significantly affected by your choice to include kettle or gas burner.” Retailers quote figures anyway. We would rather give you the component weights than a number that does not describe the box you are buying.

Made in Sweden, at Trangia’s factory in Trångsviken.