despite its stigma, plastic is the lowest impact material, and for us, the best option. here's why: first, we've found that sourcing glass results in a 40x higher impact than PCR plastic.* the next material we looked at is virgin aluminum, which has a high impact due to its mining + refining process. recycled aluminum is also hard to come by, and we can't commit to a material with an unstable supply. It makes it difficult to make commitments. we know that glass and aluminum have high recyclability rates, but when looking at the entire supply chain as a whole, we couldn't justify switching to higher impact materials. *calculated using sustainableminds software.