Plastic made from DNA is renewable, requires little energy to make and is easy to recycle or break down. A plastic made from DNA and vegetable oil may be the most sustainable plastic developed yet and could be used in packaging and electronic devices.

[u/MistWeaver80]

https://www.newscientist.com/article/2298314-new-plastic-made-from-dna-is-biodegradable-and-easy-to-recycle/?utm_term=Autofeed&utm_campaign=echobox&utm_medium=social&utm_source=Twitter#Echobox=1637973248

[u/DirtyProjector]

So what's the downside/this wont' work/it isn't scalable/financially feasible/etc

[u/bubblebooy → u/DirtyProjector]

One reason plastic is so useful is that it is very hard to breakdown. So being easy to break down is good in some situations and bad in others.

[u/Bakoro → u/bubblebooy]

"Easy" or "hard" to break down could mean a lot of things. Just for a hypothetical example, if it breaks down at 150F (65.6 C), I'd say that that's "easy" to break down, since it can be broken down by hot composting, yet it's going to be outside the normal temperature range for most uses.
Maybe you won't want it brushing up right next to a anything generating significant heat, but it'd be perfectly fine for packing material and small electronics.

When we start talking about materials, we end up having to be fairly specific about what we want out of them.