We buy specialized mailers for some applications, but for other applications we just keep the packaging that comes with supplies. We do try to avoid anything such as corn starch packing pellets that could be 'nutritive' to the organisms that we ship. We recently noticed that bubble wrap has undergone a sea-change in its construction such that it can no longer be popped.
It is constructed as interconnected rows either in a traditional configuration (Fig 1.), or in a completely new one (Fig 2).
Figure 1. Innocent looking, yet still evil.
While this bubble-wrap LOOKS like the old favorite, it contains an array of connected cells such that if one cell is breached, one row deflates. For example, see the third row from the left. If one squeezes one cell, the other connected cells absorb the pressure change and no the cell does not pop.
Figure 2. A new paradigm in packing.
Having abandoned any vestige of traditional sealed cell bubble wrap, this new format is both effective and resilient, yet the interconnected cells prevent popping by transferring pressure from one cell to the connected adjacent cells.
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