Third Party Testing

Third-Party Tested

Our Paper Straw Demonstrated Substantial Biodegradation

Independent laboratory testing showed meaningful microbial breakdown of the tested straw material under controlled anaerobic conditions.

65.4% Measured biodegradation after 59 days The result was measured using biogas production as microorganisms converted organic carbon from the straw under ASTM D5511 test conditions.
83.8% Performance relative to the cellulose reference
59 Days Reported laboratory testing period
ASTM D5511 Controlled anaerobic biodegradation test method

A Strong Result for Our Paper-Based Straw

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Paper-based instead of a conventional plastic straw

Our straw is made from paper, and the tested straw material demonstrated substantial microbial biodegradation during the 59-day laboratory study.

How the Straw Compared With Cellulose

The laboratory tested the straw alongside microcrystalline cellulose, a known biodegradable reference material.

Tested paper straw 65.4% ± 4.0%
Cellulose reference 78.0% ± 7.2%
83.8% The straw achieved more than four-fifths of the biodegradation measured for the cellulose reference. This is a relative comparison. The absolute measured biodegradation result for the straw was 65.4%.

What Makes This Result Meaningful

This was not simply a test of whether the straw softened, cracked, or broke into smaller pieces.

The laboratory measured the formation of methane and carbon dioxide as microorganisms converted carbon from the tested straw material. That provides evidence of actual biological breakdown under the laboratory conditions.

The cellulose reference also performed successfully, showing that the microorganisms were biologically active and that the test system was functioning properly.

What the Testing Supports

The testing demonstrated

Substantial microbial biodegradation of the tested paper straw material during a controlled 59-day anaerobic laboratory test.

Testing conditions matter

Actual breakdown rates can vary outside the laboratory depending on temperature, moisture, microbial activity, and disposal conditions.

How the Test Worked

  • The test followed ASTM D5511 anaerobic biodegradation conditions.
  • The straw material was incubated at approximately 37°C.
  • Biodegradation was measured by tracking biogas formation, primarily methane and carbon dioxide.
  • The study included a blank control, a cellulose reference group, and a straw test group.
  • Each test group included three replicates.

These results apply to the specific straw sample and controlled laboratory conditions described in the available report summary. The test did not directly compare the straw with a conventional plastic straw or evaluate every possible disposal environment.

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