Posts tagged: Pressure Valve

Which Electric Pressure Cooker Operates at 15psi?

By , May 29, 2013

InstantPot steam release 2 267x300 Which Electric Pressure Cooker Operates at 15psi?Because most pressure cooker recipes are designed for 15psi pressure cookers. Many users are looking for 15psi electric pressure cooker.  We are asked whether Instant Pot operates at 15psi.

To answer this question, we need to clarify a concept here.  The max working pressure of a pressure cooker is the pressure which pushes up the safety device (i.e. steam release, pressure valve or by some other names) and the cooker starts letting out steams to reduce pressure. The max working pressure of stove-top pressure cookers ranges from 12psi to 21.7psi. For the high-end stove-top models, it is typically in the 16~21.7psi range. This is specified in product document and also commonly marked at the bottom of the steam release.

Instant Pot has a max working pressure of 15.23psi (105kpa). This is marked on the steam release handle, see the image on the top.  One of the design objectives of Instant Pot is not to let out steam and make noise during its operation.  So normal working pressure has to be below 15.23psi.  Instant Pot’s working pressure is in the range of 10.15~11.6 psi. If you have small amount of food/liquid in the cooker, Instant Pot may touch 15.23psi momentarily due to the heat conduction delay.

When a stove-top pressure cooker reaches its max working pressure  and starts whistling out steams, you’d turn down the heating to stop the whistling.  In such a condition, your stove-top pressure cooker may be operating at a pressure level similar to Instant Pot. You only cook the food at the max working pressure when it’s whistling continuously.

So,

  • Does Instant Pot have the same 15 psi max working pressure as common stove-top pressure cookers? Yes! It’s 15.23psi.
  • Does Instant Pot cook your food constantly at 15psi? No, it’s in the range of 10.15~11.6 psi.
15psi1 150x150 Which Electric Pressure Cooker Operates at 15psi?

Illustration of Instant Pot working pressure curve

You can see the working pressure chart on the right. Most electric pressure cookers available on the market work like this, but may not have the same max and working pressure range.

If your recipe specifies cooking at 15psi, you can adapted to Instant Pot by increasing the cooking time by 7~15%.

Note: the max working pressure is not an indicator of the max safety pressure that the cooker can withstand. If a cooker is certified with UL or equivalent, it should withstand 5 times the working pressure without leaking.

Many electric pressure cooker has a max working pressure of 13.05psi (90kpa).  You can find this out by looking at the bottom of its steam release.  A properly certified and manufactured cooker always has such rating on the parts.

 

Instant Pot Braised Turkey Thighs

By , March 25, 2013

STurkey thighs Instant Pot Braised Turkey Thighsubmitted by Robin R.

Ingredients

Serves 4

  •  2 turkey thighs (about 1 lb), excess fat removed
  • 1 cup chicken broth plus 1 Tbsp red-wine vinegar
  • 1 cup thinly sliced onions
  • 1 cup sliced Portobello mushrooms
  • 2 tsp minced garlic
  • ½ tsp each dried rosemary, sage, thyme, salt and pepper

Gravy

  • 3 Tbsp flour
  • ¼ cup water

Directions

  1. Set Instant-Pot to Saute and brown the turkey thighs
  2. Add the rest of the ingredients and close the lid, set pot to Poultry setting and cook turkey for 1 hour
  3. After 1 hour, place a towel or pot holder over the pressure valve and do a quick pressure release; check for done-ness, if meat is not fork tender add 15 minutes and resume cooking on Poultry setting
  4. When meat is done, remove turkey thighs to cutting board and cover loosely with foil
  5. Making gravy: In a small bowl, whisk flour and water until well blended. Whisk flour mixture into liquid, onions and mushrooms in cooker, mixing well
  6. Turn cooker to Keep-warm and simmer gravy for 15 minutes or until thickened
  7. To serve: Cut meat in large pieces from both sides of each thigh bone to give you 4 pieces. Arrange on serving plates; spoon on some gravy.

NOTE:

This recipe can also be adapted for the slow-cooker setting. Instead of using the Poultry setting, set pot to slow cook for 4 hours. Remove turkey thighs and follow instructions for gravy

Bahn Mi Sliders

By , September 27, 2012

SLIDERS PULLED PORK 2 Bahn Mi SlidersSubmitted by Diane H.

Ingredients: 12 Sliders

Pickled Vegetables:

  • 1/2 Pound peeled baby carrots
  • 1/2 Pound radishes (I prefer white Icicle [baby daikon] radishes, but any kind will work)
  • 1 large chunk of peeled ginger
  • 1/2 Cup water
  • 1 Cup cider vinegar
  • 3 Tablespoons sugar
  • 1 Tablespoon salt

Pork:

  • 1,  1.5 – 2 lb. pork tenderloin
  • 1 Cup Water
  • 3 Tablespoon  fish sauce (found in the asian foods aisle)
  • 2 Tablespoons  soy sauce
  • 2 Tablespoons maple syrup
  • 1 Tablespoons brown sugar
  • 1 teaspoon sesame oil
  • 2 cloves garlic, minced
  • 1 walnut-sized piece of ginger, minced
  • 1 scallion, finely chopped
  • 1/2 teaspoon freshly ground black pepper

Other Ingredients

  • 1 dozen Hawaiin Dinner rolls
  • 1 Cup mayonnaise
  • 12 lettuce leaves
  • Sriracha hot sauce to taste

Instructions:

For the pickled veggies: Cut the carrots and radishes into matchstick sized pieces.  Cut the ginger into very thin slices.  In a medium saucepan combine water, vinegar, sugar and salt.  Bring just to a boil and remove from heat.  Add carrots, radishes and ginger to hot vinegar.  Cover and allow to cool for 30 minutes before  transferring to refrigerator to chill.  Drain immediately before serving.

For the Pork: Cut the pork into two large chunks and pat dry.  Place pork in the INSTANT POT pressure cooker with remaining pork ingredients.  Lock the lid into place and cook on high pressure for 50 minutes.  Let the steam release naturally.  When the pressure valve drops, remove the lid, tilting it away from your face to allow residual steam to escape.  Test the meat for doness by prodding it with a fork , it should be easy to pull apart.

Transfer the cooked meat to a cutting board and let stand until cool enough to handle, then shred using two forks to pull apart.  Pour any liquid from the pot over the meat.

To assemble: Cut open a roll and spread both sides with a small amount of mayonnaise.    Top with a portion of pulled pork and pickled vegetables and a lettuce leaf..  Season the top bun with Sriracha if desired.   Repeat for remaining  sliders. Serve immediately.

Speedy Texas Trail Chili

By , September 27, 2012

Submitted by Peter H.SPEEDY TEXAS TRAIL CHILE

Ingredients: 8 servings

  • 2 Tablespoons canola oil
  • 1 large onion, peeled, chopped
  • 1-1/2 pounds ground beef, turkey or chicken
  • 2 Cups favorite Bloody Mary mix (spicy preferred)
  • 2 Cans (14 ounces each) diced tomatoes with green chilies (or 28-ounce can diced tomatoes with juice)
  • 2 Cans (14 ounces each) kidney beans, drained and rinsed well
  • 4 Tablespoons (or more if you like) favorite chili powder, divided
  • 1-1/2 Cups Water

For Serving (optional):

  • Corn chips
  • Shredded cheese
  • Sliced green onions
  • Sour cream

Instructions:

  • In the INSTANT POT pressure cooker pot, heat the oil.
  • Add the onion and saute about 8 minutes until it becomes lightly golden brown.
  • Add the meat and cook until it browns, breaking it up as it cooks.
  • Stir in the Bloody Mary mix and heat on medium-high, stirring and scraping up any browned bits on the bottom of the pan.
  • Add the tomatoes, beans and 2 Tablespoons of the chili powder. Stir well. Bring to just a boil;  add the water.
  • Lock the lid in place and cook on high pressure for 5 minutes.
  • Quick release the steam.  When the pressure valve drops remove the lid tilting it away from your face.
  • Just before serving stir in Tablespoons of the chili powder then let it stand 5 minutes.
  • Ladle into bowls and garnish as desired.  Serve and ENJOY!!