Egg color is engineered

Picked one by one from a mixed channel. Transcript check: both title readers certain; 4 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include only the food-science explainer videos with plain descriptive titles (e.g. 'Why does wine smell like roses?', 'What is "freezer smell"?', 'Why fish spoils so fast'), and exclude any with shouty-caps, teaser or withheld-information titles, merch or promo content, compilations opening with sales plugs, and shorts or streams.