Question 1

What is PHA (Polyhydroxyalkanoates)?

Accepted Answer

PHA is a family of biopolyesters produced naturally by bacterial fermentation. Bacteria store PHA as intracellular energy reserves — similar to how humans store fat. When bacteria encounter nutrient-poor conditions, they synthesize PHA granules inside their cells. PHApack uses Chinese indigenous strains cultivated from unique environments to produce PHA at industrial scale, achieving 25% lower costs than international competitors.

Question 2

How is PHA different from PLA and PBAT?

Accepted Answer

PHA is the only bioplastic certified for marine biodegradation — it breaks down safely in ocean, soil, home compost, and industrial facilities. PLA requires industrial composting at 58-60°C and does not degrade in natural environments. PBAT is petroleum-based (fossil fuels) and is not marine biodegradable. PHA is produced from renewable feedstock via bacterial fermentation, while PLA comes from food crops (corn/sugarcane) and PBAT from petrochemicals.

Question 3

Is PHA a new material or has it been proven?

Accepted Answer

PHA has been studied for over 100 years (first discovered in 1923). Commercial production began in the 2000s. Today, PHA is used by major brands including Coca-Cola, P&G, L'Oréal, Danone, and Nestlé. The material is well-proven — what's new is PHApack's cost-competitive production using indigenous Chinese bacterial strains, making PHA accessible to a broader market.

Question 4

Does PHA produce microplastics when it degrades?

Accepted Answer

No. PHA undergoes complete biodegradation — microorganisms consume the material and convert it entirely into CO₂, water, and biomass. There are no microplastic residues. This is verified by independent certification bodies (TÜV Austria, BPI) through standardized testing protocols (ISO 14855, ASTM D5511, ASTM D6691).

Question 5

What does 'triple certified' mean?

Accepted Answer

PHApack products hold three independent certifications simultaneously: (1) BPI Home Compost — verified home compostability per ASTM D6400; (2) OK Compost HOME by TÜV Austria — European standard for home compost degradation; (3) OK Compost MARINE by TÜV Austria — marine biodegradation per ISO 14855/ASTM D6691. This triple certification ensures our products biodegrade in any environment.

Question 6

Are PHApack products FDA approved for food contact?

Accepted Answer

Yes. PHApack's PHA material complies with FDA 21 CFR (USA) and EU Regulation 10/2011 for food contact safety. We also hold LFGB certification (Germany). Our food-grade PHA is safe for hot food (up to 100°C microwave), cold food, oily food, and acidic food — with no chemical migration concerns.

Question 7

What is the difference between BPI and TÜV Austria certifications?

Accepted Answer

Both are internationally recognized certification bodies. BPI (Biodegradable Products Institute) is the leading North American certification, testing per ASTM standards. TÜV Austria is the leading European certification body, testing per EN standards. PHApack holds both, ensuring our products meet global regulatory requirements across all major markets.

Question 8

What is DIN CERTCO certification?

Accepted Answer

DIN CERTCO is a German certification body that verifies compliance with EN 13432 (industrial compostability) and other European biodegradability standards. It provides an additional layer of verification for the European market, particularly important for brands selling into Germany, Austria, and Switzerland where biodegradability claims are strictly regulated.

Question 9

What product categories does PHApack offer?

Accepted Answer

PHApack offers 8 major product categories: (1) Garbage & Shopping Bags, (2) Dog Poop Bags, (3) Food Packaging, (4) Drinking Straws, (5) Cups & Paper Coatings, (6) Agricultural Film, (7) PHA Pellets (raw material), and (8) Cutlery. All products are 100% PHA-based and triple certified for marine, home, and industrial compostability.

Question 10

Can PHA straws replace paper straws without the sogginess problem?

Accepted Answer

Yes. PHA straws maintain their structural integrity throughout use — they don't get soggy or dissolve in drinks like paper straws. PHA is heat resistant up to 85°C, moisture resistant, and feels identical to conventional plastic straws. The key difference: PHA straws biodegrade in ocean and home compost within months, while paper straws (often PE-lined) may persist for years.

Question 11

Is PHA safe for microwave and freezer use?

Accepted Answer

Yes. PHA food packaging is microwave safe up to 100°C and freezer safe down to -20°C. The material maintains its structural integrity across this temperature range without chemical migration. PHA's heat resistance (100-120°C) significantly exceeds PLA's limit (50-60°C glass transition), making it suitable for hot food applications.

Question 12

How does PHA agricultural film work? Do farmers need to remove it?

Accepted Answer

PHA agricultural mulch film is soil biodegradable — farmers simply plow it back into the soil after the growing season. No removal, no collection, no disposal cost needed. The film biodegrades completely in 6-24 months (depending on thickness and soil conditions), leaving zero microplastic residues. This eliminates the labor and cost of film retrieval that conventional PE mulch requires.

Question 13

How long does PHA take to biodegrade in different environments?

Accepted Answer

Degradation timelines vary by environment: (1) Industrial compost (58°C+): 3-6 months; (2) Home compost (ambient): 6-18 months; (3) Marine environment: 1-3 years; (4) Soil: 1-2 years; (5) Freshwater: 1-3 years. These timelines are verified by independent testing per ISO 14855, ASTM D5511, and ASTM D6691 standards, and certified by TÜV Austria and BPI.

Question 14

What conditions does PHA need to biodegrade?

Accepted Answer

PHA biodegrades through microbial action — bacteria and fungi in soil, compost, water, and marine environments naturally consume PHA as a food source. Unlike PLA (which requires 58-60°C industrial composting), PHA degrades at ambient temperatures in any environment with active microbial life. The process produces only CO₂, water, and biomass — no toxic residues.

Question 15

Will PHA products degrade on the shelf during storage?

Accepted Answer

No. PHA products have a shelf life of 2-3+ years under normal storage conditions (dry, away from direct sunlight). Biodegradation only begins when the material is exposed to active microbial environments (soil, compost, water). During warehouse storage, PHA products behave identically to conventional plastics in terms of stability.

Question 16

What is the difference between 'biodegradable' and 'compostable'?

Accepted Answer

'Biodegradable' means a material can be broken down by microorganisms, but doesn't specify timeframe or conditions. 'Compostable' is a stricter standard — the material must biodegrade within a specific timeframe under controlled conditions, producing only CO₂, water, and biomass (no toxic residues). PHApack products are both: they biodegrade in natural environments AND meet strict compostability standards (EN 13432, ASTM D6400).

Question 17

What is the minimum order quantity (MOQ)?

Accepted Answer

Standard MOQ is 500 kg for most product categories. For trial orders and sample evaluation, we accept orders from 100 kg (PHA pellets and raw material). Custom-branded products (printed logos, custom sizes) may have higher MOQs depending on complexity. Contact our sales team for specific requirements.

Question 18

Do you offer OEM/ODM services and custom branding?

Accepted Answer

Yes. PHApack provides full OEM/ODM services including: custom sizes and thickness, flexographic printing up to 6 colors, custom packaging design, private label branding, and product formulation tailored to specific applications. Our in-house R&D team can develop custom PHA blends for unique performance requirements.

Question 19

What is the lead time for orders?

Accepted Answer

Standard lead time is 15-25 days from order confirmation for most products. Rush orders can be accommodated for an additional fee (7-10 day turnaround for standard items). Custom OEM products with complex printing or special formulations may require 25-35 days. Sample orders ship within 5-7 days.

Question 20

Where is PHApack manufactured and where do you ship?

Accepted Answer

PHApack products are manufactured in Shanghai, China at our vertically integrated production facility. We ship globally — our products are exported to North America, Europe, Asia-Pacific, and the Middle East. We handle all export documentation including customs clearance, MSDS, and certification copies for each destination market.

PHA Biodegradable FAQ

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