Reheat 4 refrigerated, pre-cooked shrimp tempura using the RAO-4’s “Reheat” setting at 160℃ for 8 minutes on the first cycle. Do not use oil or parchment paper.
The official sources referenced are listed in the "References" section at the bottom of the page.
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Initial Setup of the Reheat PresetReheating160°C / 8min
After 4 minutes, pause the timer and place the basket on a trivet. Flip all 4 pieces at once, swapping their front and back positions. Remove any pieces where the batter has started to burn; do not resume cooking them. Remove any shrimp that are hot all the way through and have dry batter to a clean plate; return only those that are cool in the center and not burnt to the inner basket, then resume cooking for the remaining time. If you notice smoke, an unusual odor, or an error message, stop immediately, discontinue use, and follow the instructions in the user manual.
Instructions for preheating, mid-cooking checks, and how to check for doneness are included in the preparation instructions.
Reheat the shrimp tempura—which has been thoroughly cooked through after purchase or preparation—from a chilled state according to the product label. This is not the traditional tempura method of coating raw shrimp in batter and frying it.
Check Before Cooking
Attach the inner basket to the cooled unit in the correct orientation, and prepare it without preheating. Do not add water.
Use 4 pieces of pre-cooked shrimp tempura (a total of 120g) that have been heated all the way through after purchase or cooking, with a maximum batter-covered body thickness of 18mm or less. Store in the refrigerator according to the product label; use only items that are within their use-by date and free of sauce or moisture. Do not substitute with raw shrimp, uncooked tempura batter, frozen products, mixed platters, or kakiage.
Do not use any additional oil. Do not line the pan with aluminum foil, parchment paper, or a heat-resistant dish; place the food directly on the designated inner mesh, plate, or rack. Do not use any items where the batter has peeled off or is wet.
Arrange the shrimp tempura in a single layer so they do not overlap or touch each other. Ensure the tails are not near the heating element and that the ventilation holes and the “MAX” line are not blocked. Do not start heating unless all 4 pieces fit. Refer to the official instructions for your specific model to verify the correct method for the quantity and arrangement. Do not proceed if you cannot verify this. Do not estimate cooking time based on a proportional calculation of the number of servings or the appliance’s capacity.
Do not leave the area while cooking, and do not block the air intake or exhaust vents. Do not use the appliance if batter residue has fallen inside. If you notice smoke, a burning smell, or any other abnormalities, stop heating and discontinue use in accordance with the instruction manual.
Limit continuous operation to 90 minutes or less, and do not unplug the unit until the cooling fan has stopped.
Instructions
01
Check the refrigeration status and quantity
Check the storage instructions and use-by date on the product label. Weigh 4 refrigerated, fully cooked shrimp tempura pieces and confirm that they total 120g and that each body is no more than 18mm thick including the coating. Do not use pieces with sauce, moisture, or substantially detached coating. Do not add oil.
Weigh 4 refrigerated, pre-cooked shrimp tempura sticks and check the weight and thickness listed in the ingredients section.Discuss these instructions
02
Prepare the main unit
Attach the inner basket to the cooled unit in the correct orientation and prepare it without preheating. Do not add water or any other liquids.
Arrange them in a single layer without using a sheet
Without using aluminum foil, parchment paper, or heat-resistant containers, place 4 shrimp tempura directly onto the designated mesh tray, plate, or rack. Do not stack them; space them apart so they do not touch each other, and keep the tails away from the heater. Make sure not to block the ventilation holes or the MAX line.
Do not use foil or parchment paper; arrange the 4 pieces in a single layer without overlapping.Discuss these instructions
04
Heat using the "Reheat" setting
Select the “Reheat” option and start at 160℃ for 8 minutes. After 4 minutes, pause the cycle, place the basket on a trivet, flip the 4 pieces over, and switch their positions. When checking the progress, follow the “Completed,” “Not Completed,” or “Abnormal” indicators in the heating stage section; only resume the remaining time for the pieces that need to be returned to the basket. After the cycle ends, do not unplug the unit until the cooling fan has stopped.
Once the set cooking time has elapsed, crack open the 2 thickest pieces of battered shrimp on a clean plate. Serve only if the shrimp is hot all the way through with no cold spots, the surface of the batter is dry, and there are no burnt or hard spots. If the center is still cold, remove the entire batch and proceed to the final check. Do not consider the dish finished based on surface color alone.
Break open the 2 thickest pieces and check that the shrimp is hot to the center with no cold spots.Discuss these instructions
06
Serve without a lid
Transfer the shrimp tempura that meets the readiness criteria to a clean plate. Do not cover with a lid or plastic wrap to prevent the batter from becoming soggy, and eat while still warm. If using tempura dipping sauce, serve it in a separate bowl after reheating the shrimp tempura.
If the food does not meet the completion criteria, stop reheating and do not eat it. Check the actual heating time, the quantity and thickness of the 4 pieces, how long they have been out of the refrigerator, and the condition of the center and the coating. Do not add time based on guesswork if you cannot verify the corresponding official instructions.
Break open the 2 thickest of the 4 shrimp tempura pieces, including their coating, on a clean plate. Check that the shrimp is hot all the way to the center with no cold spots, and that the surface of the coating is dry with no burnt or hard areas. Do not eat any piece with a cold center; proceed to the final check.
Can I use it on raw shrimp or tempura before frying?
This method cannot be used. It is intended only for 4 pieces of shrimp tempura that have been thoroughly cooked through and then refrigerated after purchase or preparation. Raw shrimp, uncooked batter, and frozen products require different cooking instructions.
Is it okay to line the bottom with aluminum foil or parchment paper?
Do not line the appliance for this recipe. Covering the bottom or air vents restricts hot-air circulation and causes uneven drying and heating of the coating. Do not use a heat-resistant container; place the shrimp tempura directly on the specified inner rack, plate, or rack in a single layer.
Will adding more oil make the batter crispier?
Do not add any additional oil. Reheat the food using the residual oil remaining in the batter from the initial frying; do not use a pool of oil or cooking spray. Do not use this method if the food is covered in sauce or water.
Can I heat up the vegetable tempura and kakiage at the same time?
Do not reheat them together. Since the thickness, moisture content, and amount of batter vary, we’ll limit this to 4 shrimp tempura for now. We will not adjust the quantity or time for mixed platters, kakiage, chikuwa tempura, etc.
Can I put it in right after taking it out of the fridge?
Refrigerate the product according to the package instructions, then check the quantity and the condition of the batter before adding it. Do not use products that have passed their expiration date, have been left at room temperature for a long time, or have been frozen.
How the Recipes Were Created and Sources Consulted
Standards verified in official documents
The reheat preset is 160℃ for 8 minutes.
Independently designed details and unverified points
The presets do not specify the type, quantity, or thickness of the food. 4 refrigerated, pre-cooked shrimp tempura sticks (total weight: 120g, maximum thickness: 18mm), with no additional oil, arranged in a single layer, and flipped and checked for doneness at the 4-minute mark, are Crisp’s proprietary test conditions.
