Sous vide is a cooking technique used by fine dining establishments to slowly cook foods in a sealed bag at low temperatures. Sous vide machines ensure that your steak, roasts, and other foods cook at a precise temperature, so they come out succulent and delicious every time. If you enjoy fine cuisine but want to reduce the time you spend in the kitchen, a sous vide machine may be the perfect device for you.

To help you on your way to becoming a sous vide expert, we have compiled a list of some common sous vide mistakes to avoid.

Do you love tender and juicy rib eye steak with the fat rendered so perfectly that it melts in your mouth? After watching videos and seeing pictures of a perfectly cooked sous vide steak, many newbie sous vide cooks make the mistake of assuming steak fat is going to behave the same way the meat does. But, this is a mistake, as fat and muscle tissue have different chemical compositions, and therefore they behave differently when you cook them.

When you cook a medium-rare steak sous vide, you’re cooking it at a constant temperature of between 129 and 134 degrees Fahrenheit. At this temperature, it takes quite a long time for fat to render. Because of this, many sous vide cooks complain of “rubbery” fat, or fat that is overall unappetizing.

To eliminate the “fat problem” when cooking steak sous vide, you have a few options. You can pre-sear your steak before placing it in the water bath. Some cooks recommend this for more marbleized cuts, like rib eyes. Others say cooking your meat for a bit longer, while still staying within the recommended ranges. You can also trim off the fat, or choose a cut of meat that’s leaner, like sirloin or fillet mignon. It’s also best to avoid methods like “salt drying,” as they typically don’t produce good results. Remember, to get the browning produced by the Maillard reaction, you’ll want to finish the steak on the stove or grill.

If water from the bath gets into you sous vide pouch, this can create something that looks more like a mess than a meal. You want to make sure your sandwich bags or vacuum-sealed pouches are properly sealed before you submerge them. If you’re really serious, you might even consider silicone bags.

When it comes to sous vide, tongs are not your friend. They can smash your delicate fish fillets. Also, picking up sous vide bags with sharp tools like tongs can puncture your bags. Foods like asparagus, nuts, or other foods with sharp stems can puncture your bags if you don’t use caution when placing them in your sous vide pouches.

Cooking for a large group? You can put several cuts of fish or other meats in the same pouch. But, if you neglect to stir the pouch around from time to time, you’ll end up with one big giant connected piece of meat, instead of delicious single portion fillets.

Floating can also be an issue. Make sure you weigh down your bags down, clip them to hold them in place, or follow your manufacturer’s instructions for how to prevent floating. ChefSteps recommends placing a butter knife or spoon in the bag with your food to weigh it down.

Second to steaks, eggs are probably the best food you can make sous vide. But, if you just chuck them in the water bath, only about 80 percent of your eggs will make it out without damage. To protect your eggs, just place them in a sous vide pouch; they’ll be just as delicious, and all of them will likely make it out intact.

Imagine you’re having the boss over for dinner after work, and you want to impress the head honcho with your awesome cooking skills. So, you put your sous vide pouches in the water bath before work, and head out for the day. But, when you return home, half of the water has evaporated from your water bath, your pouches are only partially submerged, and your dinner (and potentially your sous vide machine) is ruined.

To avoid this, cover your container with plastic wrap so the water that evaporates goes right back down into the bath. Also, always make sure to follow your manufacturer’s instructions on leaving your machine unattended.

Read, read, read, practice, and then read some more. Reading all of the instructions for your machine, researching other people’s experiences, and practicing different recipes will help you learn how to cook your meals to perfection.

Even though people say sous vide is easy, you can overcook your food. The food continues to cook after it leaves the pot, unless you place it in an ice bath. Also, when you go to sear your meat, you can easily overcook it during searing, especially if you’re using a thinner cut. Some chefs say that you’ll get the best results if you use a very thick cut of steak (like two inches or even thicker).

When you season foods and cook them on a stove top or on a grill, some of that seasoning falls off onto the pan or even into the air. When you season foods you’re putting in a sous vide pouch, however, that seasoning has nowhere to go but into your food. If you season your foods heavily, they may come out overly salty and, quite frankly, kind of gross.

If you stick with fresh spices and aromatics beforehand, you can always add any extra seasonings afterwards.

Some sous vide cooks are dissatisfied with the texture and mouthfeel of their chicken breast or the taste of their broccoli. It’s best to think of sous vide as a totally new way of experiencing your food, and don’t expect it to taste the same way it would if you cooked it using another method.