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Stack Cooking Method

Stack cooking is another exciting time and money-saving feature of Rena Ware 
cookware. Stack cooking lets you prepare more foods at one time by stacking 
small utensils atop larger flat-topped utensils, all on the same burner. This is 
possible because of the cookware’s efficiency in conducting heat. 
To obtain a flat cooking surface use an inverted base utensil as a cover instead of 
a Nutri 

 Sensor cover. 

For best results, heat each utensil on direct medium heat until a water seal is 
reached.  Then stack the utensil on top of another utensil that has already reached 
a water seal.  Two utensils high is the maximum for cooking, but you can keep food 
warm for serving in a three-utensil-high stack.  

Some foods, like rice, are ideal for stack cooking.  Delicate vegetables like spinach 
and snow peas should not be cooked using the stack cooking method. Root 
vegetables like potatoes, carrots, beets, turnips and parsnips should be cut into 
small pieces to facilitate stack cooking.

“Water-less” Basics  - The simple steps:

Use the right utensil. 

 

The food you are cooking should fill 

the utensil at least 2/3 full.  Using the wrong size utensil 
will result in the loss of vitamins and minerals and could 
cause your food to dry out or burn.

Rinse. 

Rinse the food in the utensil, drain off extra water, 

and cover.

Start on medium heat.

 

Starting to cook on high heat 

causes moisture to be driven out of the utensil instead 
of allowing a water seal to form.  Rena Ware cookware 
conducts heat so efficiently that you don’t need to use 
a heat setting higher than medium to medium-high to 
achieve the desired cooking results.  

Create a water seal.

 

The special Nutri  

 Sensor cover tells 

you when a water seal has formed. Simply begin cooking 
food over medium heat with the steam vent open until the 
Nutri 

 Sensor whistles, indicating that a water seal has 

formed. 

Lower the heat.

 

 Once the water seal has formed and the 

Nutri 

 Sensor has whistled, close the steam vent and 

reduce heat to low to finish cooking.  

Don’t peek!

  Resist the urge to look at the food as it cooks.  

If you remove the cover during cooking, the water seal is 
broken and heat and moisture are allowed to escape.  

Don’t add water!

  If a recipe calls for boiling food or adding 

a large amount of water—don’t! Rinse vegetables, pour off 
excess moisture, cover the utensil, bring to a water seal, 
and don’t peek.  If a food has natural moisture, like leafy 
vegetables, you can retain that moisture.  If the food is dry, 
add a small amount of water. 

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