Clear PET Hinged Baking Clamshells | 230mm Square with Flat or 4-Step Stepped Bottom | Muffins · Swiss Rolls · Donuts | GHW-225 & GHW-GD-72

QUNLU presents the clear PET clamshells | 230mm Square with Flat or 4-Step Stepped Bottom | Muffins · Swiss Rolls · Donuts | GHW-225 & GHW-GD-72, a clear PET clamshells versatile packaging solution designed for modern bakeries, retail displays, and foodservice operations. Combining clarity, durability, and thoughtful design, these clear PET clamshells answer growing demand in bakery packaging trends for visually appealing, protective, and convenient pastry presentation

The clear PET clamshells are crafted from high-clarity clear PET clamshells material offering excellent transparency and structural integrity. The 230mm square footprint provides generous interior space, while two bottom configurations—flat and 4-step stepped—accommodate different product arrangements and stacking preferences. The clear PET clamshells flat bottom version supports stable placement of larger or irregularly shaped items, whereas the 4-step stepped bottom secures individual pastries and minimizes movement during transport

These clear PET clamshells are tailored for a wide set of bakery and retail environments. Bakeries and patisseries can use them for showcasing muffins, cupcakes, Swiss rolls, donuts, scones, and cookies

Clear PET clamshells meet modern customer expectations by making products instantly visible. clear PET clamshells increases consumer confidence by allowing customers to inspect appearance, portioning, and freshness before purchase. In a clear PET clamshells market where presentation drives purchase decisions, clear PET clamshells function as display windows that enhance perceived quality

Addressing sustainable food containers and shifting industry values, QUNLU’s clear PET clamshells are designed with material efficiency in mind. clear PET clamshells is widely recyclable and compatible with existing recycling streams, making clear PET clamshells a practical choice for operations pursuing waste reduction without compromising product display

QUNLU’s clear PET clamshells production standards emphasize consistent wall thickness, uniform clarity, and tight lid-to-base tolerances to ensure leakage resistance and stack ability. The clear PET clamshells hinged design incorporates robust living hinges that withstand repeated opening and closing, preserving product security during shelf life and customer handling

① Two Layouts, One Footprint — 230mm square footprint runs across flat-bottom (GHW-225, muffins/buns) and 4-step stepped bottom (GHW-GD-72, Swiss rolls/donuts); one shelf slot covers two bakery categories.

② One-Piece Hinged Clamshell — top and bottom thermoformed together with a live hinge and front snap-lock; single-motion close, no separate lid to lose on the packing line.

③ Bottom Geometry Matches the Product — flat anti-slip texture keeps muffins from sliding; 4-step stepped rails align 8 Swiss roll slices or donuts in clean rows for premium shelf display.

④ Crystal-Clear PET Display — glass-like sidewalls show off toppings, glazes and fillings from every shelf angle; proven to lift impulse purchase on retail bakery cold cases.

⑤ rPET Ready — GRS-certified 30 / 50 / 100% recycled PET on both molds; samples 3-7 business days.

Both GHW-225 and GHW-GD-72 are one-piece hinged PET clamshells — top and bottom thermoformed as a single part with a live hinge on the back edge and an integrated front snap-lock. Single-motion close, no lid inventory to manage, no packing-line misfit. The 81mm dome height clears typical muffin tops (~40-50mm), Swiss roll slice diameters (~50-60mm) and standard donut heights (~30-40mm) without crushing decoration.

GHW-225 features a flat bottom with fine anti-slip texture — keeps muffins and buns from sliding under delivery-bag tilt without visually competing with the pastry decoration. GHW-GD-72 features a 4-step stepped bottom — the raised rails act as dividers, holding 8 Swiss roll slices or donuts in aligned rows for a premium shelf-ready visual.

Thermoformed in a Class 100,000 clean room on KIEFEL (Germany) and ASANO (Japan) equipment. Custom services: GRS-certified rPET (30/50/100%), adjusted carton counts for holiday and wedding-season bakery peaks.

Safety: BPA-Free · PFAS-Free · No heavy metals · FDA 21 CFR 177.1630 compliant

Zhejiang Qunlu built the GHW-BakingClamshell tooling as a matched pair — same 230mm outer footprint, differentiated by bottom mold insert. Bakery buyers standardize one shelf slot and one carton footprint while offering two retail-format SKUs across their muffin and roll-slice programs.

The 4-step stepped bottom on GHW-GD-72 requires a more complex thermoforming die than a flat mold — an in-house tooling capability that eliminates the need to add divider inserts (a common workaround for competitors selling flat-bottom clamshells to Swiss-roll programs).

90 minutes to Shanghai Port, 2 hours to Ningbo Port — competitive ocean freight and full export documentation for time-critical holiday bakery windows.

Q1: What is the difference between GHW-225 and GHW-GD-72?

Same 230mm square footprint and same 81mm dome height. GHW-225 has a flat textured bottom for 4 muffins / cupcakes / buns in a 2×2 grid. GHW-GD-72 has a 4-step stepped bottom that holds 8 Swiss roll slices or donuts aligned in rows — the stepped rails act as built-in dividers.

Q2: Is the hinged one-piece design reliable for retail bakery?

Yes. The live hinge is formed from continuous PET (not a mechanical join) and the front snap-lock delivers an audible click. Validated for retail cold-case display, hand-pack lines and last-mile delivery with no lid pop-off.

Q3: What bakery item heights does the 81mm dome clear?

Standard muffin tops (~40-50mm), Swiss roll slice diameters (~50-60mm), donuts (~30-40mm), cupcakes with buttercream swirl (~50-70mm). For taller decorated cakes look at our whole-cake QL-CakeRound or QL-CakeSquare series.

Q4: Do the 4 stepped rails on GHW-GD-72 really keep 8 rolls in place?

Yes. Each stepped rail is a raised ridge across the base that seats a row of Swiss roll slices or donuts — 2 rolls per row × 4 rows = 8 pieces held in aligned rows during retail display, hand-carry and delivery-bag transport.

Q5: Can I combine both SKUs in one container?

Yes. Both SKUs use the same PET / rPET material, same thermoforming lines and same 230mm outer footprint. Any mix ratio consolidates into one 20ft or 40ft container.

Q6: Is GRS-certified rPET available on both?

Yes. 30 / 50 / 100% recycled PET on both molds; clarity remains glass-like up to 50%. Chain-of-custody documentation issued per shipment.

Q7: How do I request a quote?

Send SKU mix (GHW-225 / GHW-GD-72), target quantity, destination port and PET vs rPET preference — reply within 24 hours.