Answers
Answers to buyers' questions
Straight answers on pack sizes, container loads, materials and compliance, with the figures from AVI's own catalogue.
59 questions answered
Choosing a pack
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Heat-seal punnet or clamshell: which is right for my produce?
Choose a clamshell if you have no sealing machine and want a lid shoppers can reopen; choose a heat-seal punnet if your line has a tray sealer and...
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How do I choose the right punnet or clamshell for my produce?
Work through six points: the fill weight your buyer wants, the closure your packing line can handle (clamshell or heat-seal), a depth that holds...
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How is a custom thermoformed pack developed?
A custom pack goes from brief to production in five steps: you share the product, a sample or drawing, the case count and your packing line; the...
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Plastic or paper egg trays: which is better?
It depends on the job. Paper (moulded fibre) trays are low-cost, absorb moisture and are compostable, but they are opaque, weaken when wet and are...
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What is a punnet, and what sizes do punnets come in?
A punnet is a small retail pack for soft fruit and vegetables such as berries, grapes and cherry tomatoes. AVI's rPET punnets run from 125 g (4.4...
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What is a tamper-evident container, and is it the same as tamper-proof?
A tamper-evident container shows clearly if it has been opened: a tab, band or hinge lock breaks on first opening and cannot be reset. A...
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What is clamshell packaging?
A clamshell is a one-piece pack whose lid is joined to the base by a hinge, so it snaps shut and can be reopened. Thermoformed from clear rPET,...
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What is the best packaging for cherries?
For retail, cherries go in vented clamshells or heat-seal punnets that protect the stems and let the fruit breathe. AVI's rPET options are the PNG...
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What packaging is used for fresh herbs, microgreens and sprouts?
Fresh herbs, microgreens and edible flowers are sold in clear, rigid clamshells that stop the leaves being crushed. AVI's rPET options run from...
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What packaging is used for peaches, plums, apricots and nectarines?
Stone fruit is sold in clamshells with cups for 2 or 4 pieces, or loose in larger clamshells and flowpack trays. AVI's rPET options include the...
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Why does fruit packaging have holes?
The holes are vents. Fresh fruit keeps breathing after harvest, giving off heat, moisture and carbon dioxide; vents let that out so condensation...
Export & logistics
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How many punnets are in a carton, and how many cartons fit on a pallet?
It depends on the pack. A 250 g PNG 250 / 75 clamshell packs 1,225 to an export carton with 23 cartons per pallet; a flat A-30 / 45 heat-seal...
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How many punnets fit in a 40 ft container?
It depends on the pack. For AVI's 250 g PNG 250 / 75 clamshell, a 40 ft container takes 629,650 pieces on pallets (23 cartons per pallet, 1,225...
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What is AEO T2 certification?
AEO (Authorised Economic Operator) is a customs programme that recognises secure, compliant exporters and importers. In India it is run by the...
Food & deli
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How does modified atmosphere packaging (MAP) work?
In MAP, the air in a food pack is replaced with a protective gas mix before the pack is sealed with a barrier film. Carbon dioxide slows bacteria...
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What are MAP trays, and which foods use them?
MAP (modified atmosphere packaging) trays are sealed with a barrier lidding film after the air inside is replaced with a protective gas mix, which...
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What containers are used for pomegranate arils?
Ready-to-eat pomegranate arils are sold in shallow heat-seal trays or tamper-evident cups. AVI's rPET options are the TBT 103 147 trays (TBT 103...
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What is a hinged-lid container, and which sizes does AVI make?
A hinged-lid container is a one-piece tray and lid joined by a hinge, so it closes without a separate lid. AVI makes them in rPET for salads, cut...
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What packaging is used for dry fruits and nuts?
Retail dry fruits and nuts are packed in clear hinged containers that close firmly and show the product; gift packs use compartment trays. AVI's...
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What plastic containers do bakeries use for cakes and pastries?
Bakeries use clear, hinged PET containers that show the product and protect decoration. AVI makes rPET bakery containers from small single-pastry...
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What size containers are used for salads?
Single-serve salads usually go in 16–32 oz containers, family and food-service packs in 48–64 oz. AVI's rPET salad packs include the on-the-go AT...
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Which containers keep cut fruit fresh?
Cut fruit keeps best in a closed, clear pack that limits moisture loss and handling. AVI's tamper-evident clamshells (from the TE 300 / 8oz to the...
Materials & compliance
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Are plastic fruit punnets and clamshells recyclable?
Clear PET and rPET punnets and clamshells are recyclable: they are resin code 1, the same plastic as drink bottles. Whether yours is collected...
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Can PET and rPET containers go in the microwave?
No. Standard PET and rPET packs, such as clamshells, punnets and salad containers, are made for chilled and room-temperature food. PET starts to...
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How are blister packs made, and how thick is blister film?
A blister machine heats a plastic film (usually PVC or PET) and forms it into cavities, the product is dropped in, and a lidding foil or printed...
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How do you calculate the weight of a plastic sheet or roll?
Weight = area × thickness × density. In practice, grams per square metre = thickness in microns × density in g/cm³. APET is about 1.33–1.35 g/cm³,...
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How does Spain's plastic packaging tax affect imported packaging?
Since January 2023 Spain taxes non-reusable plastic packaging at €0.45 per kilogram of non-recycled plastic, including packaging brought into...
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How much recycled content can rPET packaging have, and how is it proven?
AVI's rPET sheet is graded to order from 30% to 100% recycled content. The content is documented by EN 15343 recycled-content traceability...
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Is PET packaging recyclable?
Yes. PET (resin code 1) is one of the most widely recycled plastics: clear PET bottles, and increasingly trays and punnets, are collected and...
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Is rPET packaging safe for food contact?
Yes, when the recycled PET comes from a decontamination process approved for food contact. AVI produces its food-grade rPET with Starlinger deCON...
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PVC or PET film for blister packs?
Both work. PVC is the long-standing blister film for medicines: it forms and seals easily, and AVI makes it as the AVI Blis grade for...
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What are high-barrier films, and which foods need them?
High-barrier films are multi-layer films that block oxygen and moisture, so sensitive food keeps its taste, colour and shelf life. A typical...
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What does ESD-safe mean, and which packaging materials are ESD safe?
ESD-safe packaging protects electronic parts from electrostatic discharge by letting static charge drain away slowly instead of sparking....
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What does food-grade plastic mean, and which plastics are food grade?
Food-grade plastic is plastic approved for contact with food under set conditions: the right food type, temperature and time, with migration into...
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What is blister packaging, and how is it different from a clamshell?
A blister pack is a formed plastic cavity (the blister) sealed to a backing: aluminium foil for tablets and capsules, or printed board for retail...
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What is EN 15343 certification?
EN 15343 is the European standard for traceability of recycled plastics: it sets how a recycler tracks material from collection to finished...
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What is ocean-bound plastic (OBP)?
Ocean-bound plastic (OBP) is plastic waste collected before it reaches the sea: abandoned waste within about 50 km of a coastline, in areas...
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What is rPET, and how is it different from PET?
rPET is recycled polyethylene terephthalate: PET bottles and packs that have been collected, sorted, washed, flaked and made into new material....
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What is the best plastic for thermoforming?
For clear food and produce packaging, PET (APET or rPET) is the usual best choice: it forms well, is food-safe, stiff and widely recycled. PETG...
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What is the difference between APET, PETG, GAG PET and rPET sheet?
All four are PET (polyethylene terephthalate) sheet. APET is clear amorphous PET for punnets, trays and blisters; PETG is PET modified with...
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What is the difference between PET and PVC sheet?
PET (polyethylene terephthalate, resin code 1) and PVC (polyvinyl chloride, resin code 3) are both clear, rigid sheets used for thermoforming,...
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What is the difference between rigid and flexible plastic packaging?
Rigid packaging keeps its shape whether full or empty: trays, punnets, clamshells, bottles and blisters. Flexible packaging changes shape with its...
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What is the EU PPWR, and what does it mean for plastic packaging exporters?
The Packaging and Packaging Waste Regulation (PPWR) replaces the EU packaging directive with rules that apply directly in every member state:...
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What is the UK Plastic Packaging Tax, and how does recycled content avoid it?
The UK Plastic Packaging Tax, in force since 1 April 2022, is charged per tonne on plastic packaging made in or imported into the UK that contains...
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What is thermoforming, and how is it different from injection moulding?
Thermoforming heats a plastic sheet until it softens, pulls or presses it over a mould with vacuum or air pressure, then cools and trims it. It...
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What thickness of PET sheet is used for thermoforming, and who makes it in India?
Thermoforming PET sheet is specified in microns. AVI Global Plast extrudes it in India: APET from 200 to 1,200 microns (±5%), GAG PET from 150 to...
Pack sizes
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How big is a 1-pint strawberry clamshell?
AVI's 1-pint packs are the PNG 253 / 43, a low strawberry clamshell of 190 × 115 × 43 mm (13 g, also used for 300 g), and the PNG 125 / 69, a...
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How many kiwifruit fit in a punnet?
AVI makes kiwi punnets for 2, 3 and 5 fruit: the PNG 250 / 55 holds 2 kiwis, the PNG 300 / 60 (115 × 115 × 60 mm) and PNG 600 / 56 hold 3, and the...
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What do US clamshell sizes measure: 4.4 oz, 12 oz, 18 oz, 1 pint and 3 lb?
US berry and produce clamshells are named by the weight of fruit they hold. In AVI's rPET range: 4.4 oz (125 g) PNG 108 / 40, 108 × 108 × 40 mm;...
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What packaging holds 500 g of grapes, strawberries or cherry tomatoes?
AVI makes three kinds of 500 g pack: hinged clamshells for grapes (PNG 501 / 80, PNG 501 / 85, PNG 501 / 90), heat-seal punnets for berries,...
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What packaging is used for 1 or 2 avocados?
AVI makes two avocado clamshells: the PNG 250 AV for a single fruit (128 × 94 × 67 mm, 11 g) and the PNG 400 AV for two (162 × 122 × 67 mm, 18 g)....
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What size clamshell holds 125 g (4.4 oz) of blueberries?
125 g is the same as 4.4 oz, the standard blueberry pack. AVI's 4.4 oz packs are the PNG 108 / 40 (108 × 108 × 40 mm, 9 g) and PNG 125 / 34 (130 ×...
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What size is a mushroom punnet or tray?
Mushrooms are usually sold on an open tray over-wrapped with film. AVI's rPET mushroom trays share one 175 × 125 mm footprint in three depths: the...
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What sizes do cherry tomato punnets come in?
Cherry tomatoes are packed in 250 g, 1 pint, 11 oz, 450 g and 500 g packs. AVI makes the 250 g PNG 250 / 75 and PNG 600 / 51 clamshells, the...
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What sizes do plastic egg trays come in?
AVI's rPET egg trays hold 6, 10, 12, 15, 20, 25 or 30 eggs, with a 12-egg quail tray and a 6 × 2 tear-off tray as well. The 12-egg tray measures...
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What sizes do strawberry punnets and clamshells come in?
Strawberry packs are sold by fruit weight. AVI's rPET range covers 190 g (PNG 190 / 55), 220 g (PNG 220 / 60), 225 g (PNG 400 / 40), 240 g (PNG...
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Which clamshell holds 1 kg of grapes?
AVI's 1 kg grape clamshells are the PNG 501 / 126 (190 × 115 × 126 mm, 31 g) and PNG 501 / 135 (190 × 115 × 135 mm), and the wider PNG 750 / 125...
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Which punnet holds 2, 4 or 6 apples?
AVI's apple clamshells are the PNG 420 APL 2PC for 2 apples, the PNG 1500 / 65 (155 × 155 × 65 mm) and PNG 3000 / 4CP (185 × 185 × 75 mm) for 4,...
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Which punnet holds 250 g of cherry tomatoes, grapes or strawberries?
For 250 g, AVI's standard pack is the PNG 250 / 75: a hinged rPET clamshell, 128 × 94 × 75 mm, weighing 9 g, documented for cherry tomatoes,...
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