this post was submitted on 02 Jul 2023
4 points (100.0% liked)
Science
13017 readers
82 users here now
Studies, research findings, and interesting tidbits from the ever-expanding scientific world.
Subcommunities on Beehaw:
Be sure to also check out these other Fediverse science communities:
This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Hahaha MR-PRESSO in an article about coffee.
Does anyone have ideas as to why instant coffee may have higher levels of lead contamination than regular coffee?
Like does the freeze/spray drying add the potential for it or maybe people who use instant coffee tend to drink more of it or in higher concentrations?
Instant gets much higher extraction than any other form of brewing. Hypothetically, it's more likely to extract trace metals at higher concentrations than other methods.
Just some speculation, maybe sourcing cheaper/multiple kinds of beans? Is instant coffee single source? If it's not it could be that some of the beans that are being sourced have higher lead content. I know for example that lead is a problem in tea leaves if not monitored for, as the plants will take up lead from the soil.