Cooking fish gently
Fish has short muscle fibers and very little collagen, so it's tender but cooks fast. Most fillets are done in about 3 to 4 minutes per side. One minute too long and they dry out.
Start skin side down
Place a dry fillet skin side down in a hot, oiled pan and press it flat for 10 seconds so it doesn't curl. Then leave it alone for 3 to 4 minutes, until the skin is crisp and the flesh looks opaque partway up.
The doneness window is narrow
Most fish is done between 52 and 63°C (125 to 145°F). Salmon is silky near 52°C, while cod flakes near 60°C. The USDA safe temperature is 63°C (145°F). The temperature keeps climbing a few degrees after you pull it, so take it off slightly early.
Test yourself
Questions from the interactive lesson, with the answer and the why.
A salmon fillet cooks in minutes, but a beef shoulder needs hours. Why?
Short fibers and little collagen to melt. Beef shoulder needs hours to melt its collagen, and fish has almost none.
True or false: For safety, a fish fillet must reach the same 74°C (165°F) as chicken.
False. The safe temperature for fish is 63°C (145°F). Chicken needs 74°C (165°F).
What went wrong? You flip a fillet three times and nudge it around the pan. It breaks into flakes.
Too much flipping and poking. Delicate fish breaks apart when it's moved around. Leave it alone.
Fill the blank: A fish fillet usually needs to be flipped only ___.
A fish fillet usually needs to be flipped only once. One flip, then finish gently.
Fish on gentle vs hard heat
Why fish likes a calm pan.
Do the 20-minute experiment