261 Got this from the Chan. Cotton swab vs Covid swab under microscope. Cotton = leaves no marks or trace when brushed across meat. Covid = leaves multiple fibers and have weird "black/gray" fibers that reacts to heat. (files.catbox.moe) ?️ DISCUSSION ? posted 3 years ago by Deaf_MAGA_Pede 3 years ago by Deaf_MAGA_Pede +261 / -0 Your browser does not support videos. 108 comments share 108 comments share save hide report block hide replies
Here's one company that manufactures flocked swab and tries to explain the difference
https://www.copanusa.com/sample-collection-transport-processing/floqswabs/