Why did my cod turn out rubbery?

Chef's answer
Fish that seems tough when you bite into it is probably overcooked. As it moves from done to "overdone," the flesh continues to firm then shrinks, pushing out moisture, which evaporates and leaves the fish dry and chewy. Fresh fish needs little embellishment, for its flavor is as fragile as its flesh..
Frequently asked Questions 🎓
Bread flour and all-purpose flour are higher in protein than other flours, making them a good choice for chewy loaves. Cake flour, by contrast, is a low-protein flour, so it produces a softer, more cake-like loaf. To make chewy bread, use bread flour or all-purpose flour.
When you're cooking bacon on the stovetop, you don't want to get the heat too high, too fast, chefs say. Too high of heat can result in rubbery bacon.
Is chewy bacon safe to eat? Yes, it is safe to eat chewy bacon. As long as the bacon has been cooked to an internal temperature of 165 degrees Fahrenheit, then it is absolutely safe for eating.
Bring the burner up to medium-high heat. Allow the water to come to a simmer and boil off. This helps render the fat so you get leaner, soft slices. Lower the heat to medium and continue to cook the bacon until it's just chewy and still soft -- about 3 to 5 minutes..
For perfectly crisp strips with tender-but-not-gummy fat, start the bacon in a cold pan over medium-low heat, and take your time. Going low and slow ensures the fat will render out properly, and provides the bacon its own grease to cook and crisp in.
Mutton may be chewy if the meat has not been tenderized well before/during cooking. Like if it is not : Marinated (or not long enough marinated) not fully pressure-cooked..
To cook it until it's so tender it falls apart, you'll need to choose a joint like chuck and blade or beef brisket and either braise, slow roast or slow cook it for at least a couple of hours.
A few more cooking questions 📍

Should you stir rice while cooking?

NEVER stir your rice! Stirring activates starch and will make your rice gloppy. ... If you cook rice too quickly, the water will evaporate and the rice will be undercooked. This spice blend is primarily savory, with just a hint of brown sugar to offset the salt, herbs and spices. Alcohol, in contrast, is a volatile chemical that lowers the boiling point of water. Even a large amount dissolved in the water will usually make only small changes in the boiling point. Are Butterball turkeys injected with butter?;No, there isn't actual butter in Butterball turkeys It's okay if you've asked yourself if Butterball turkeys actually contain butter. It makes sense, because the word butter is in the name after all. And generally speaking, butter makes everything taste better. When the pan bottom becomes hot enough, H2O molecules begin to break their bonds to their fellow molecules, turning from sloshy liquid to wispy gas. The result: hot pockets of water vapor, the long-awaited, boiling-up bubbles. To be safe, be sure to cook it with a higher water-to-rice ratio (arsenic is water soluble) and avoid rice grown in Arkansas, Texas, Louisiana, and China. Does chili get better the longer it cooks?;The longer it simmers, the more the flavors will meld together. In fact, chili is just the kind of thing you want to make a day ahead: it gets better with a night in the fridge. It absorbed the usual amount of water (4 cups water for 1 cup rice) when cooked in a pressure cooker. ... The reason it is good to soak your rice overnight, is to leach the arsenic out of it. Does simmering thicken sauce?;Simmering can thicken a sauce by removing the lid on your pot or skillet to allow moisture to evaporate, instead of pouring into the sauce. This method is called reduction" and is an excellent way to thicken a sauce without changing the flavor. If your sauce is too runny, it has too much water.