The time needed to activate the Lava Rocks is dependent on the strength of the microwave being used. Be sure to microwave the Lava Rocks for half the time listed, turn them over, and resume microwaving the Lava Rocks for the remaining time.
1800 watts: 1 minute each
1500 watts: 1.5 minutes each
1000 watts: 2.0 minutes each
Place the Lava Rocks side by side, on the turntable, in a clean, dry microwave. Heat the Lava Rocks for half of the recommended time, turn them over, and continue heating them for the remaining time. To remove the Lava Rocks from the microwave, grasp them by the gripping tabs located on the sides of the Lava Rocks only. The center of the Lava Rocks will be HOT.
OBSERVE THE PACKS WHILE HEATING. If any expansion of the pack is observed at any point during heating the microwave MUST BE TURNED OFF IMMEDIATELY. Allow the expansion to recede before handling. Do Not heat for more time than is stated.
Alternatively you can heat the Lava Rocks by placing them in Boiling Water for 10 minutes, then removing with tongs.
There are a few factors that affect the heat of your food: the strength of microwave, the internal temperature of food, insulation period.
For best results, we recommend heating rocks for the specified time, reaching an internal temperature of at least 160 degrees Fahrenheit and keeping your Lava Lunch closed as much as possible to prevent heat escaping.
If you are not achieving the desired results, you may increase the heating time of the Lava Rocks by 30 seconds combined heating time when heating both Lava Rocks together. On day one, try increasing the combined heating time of both Lava Rocks by 30 seconds to see if that resolves the issue. If you are still not satisfied, you may try an additional 30 seconds on day two. Do not exceed 5 minutes of combined heating time.
GENERAL HEATING WARNINGS FOR THE LAVA ROCKS
The Lava Rocks are designed to be heated in a clean microwave. Leftover food particles or grease may cause hot spots which may damage the Lava Rocks and void the general warranty of the Lava Rocks.
Do not heat the Lava Rocks beyond the recommended times. Overheating the Lava Rocks can cause damage to the Lava Rock and may result in damage or injury.
DO NOT expose the Lava Rocks to open flames as the packaging will melt and may catch fire.
Allow the Lava Rocks to completely cool to room temperature prior to heating in a microwave oven or reheating in a microwave oven.
DO NOT leave the Lava Rocks unattended while heating.
DISCONTINUE USE if the Lava Rocks leak fluid during the heating process or if you notice any expansion, or disfigurement of the Lava Rock container.
CAUTION LAVA ROCKS WILL BE HOT AFTER HEATING IN MICROWAVE. USE CARE WHEN HANDLING. AVOID PROLONGED CONTACT WITH THE SKIN.
The following test can be used to determine microwave wattage.
- Pour 1 litre (L) of cool tap water into a microwave-safe container. Using the thermometer, stir the water for about 10 seconds, then measure and record the temperature. For accurate results, the initial water temperature should be between 60 degrees F (15.6 degrees C) and 80 degrees F (26.7 C).
- Place the container in the center of the microwave. DO NOT leave the thermometer in the container. The cooking shelf (tray) or turntable must be in place and any metal racks must be removed.
- Heat the water for 33 seconds at full power. Use an accurate digital timer or stopwatch if the oven has a mechanical timer.
- After the heating time is completed, immediately remove the container, stir the water for about 10 seconds, re-measure and record the temperature of the heated water.
- Subtract the starting water temperature (step 1) from the ending water temperature (step 4) to obtain the temperature rise.
- To determine the output power in watts, multiply the total temperature rise by a factor of 100.
- The test may be repeated to ensure accuracy
Example: Starting temperature (T1) = 60 deg F; Ending temperature (T2) = 72 deg F; Subtract T2 from T1: 72 - 60 = 12 (temperature rise); Multiply temperature rise by 100: 12 x 100 = 1200 watts
Hand wash with mild soap and warm water. Allow to air dry completely. Do not use bleach. Do not machine wash. Store in a cool, dry place.
While any food container can be used with Lava Lunch we have found that food stays hotter, longer, when food is packed in silicone containers.
Additionally, we have had the best results when placing one Lava Rock beneath your food container, and one on top. Although you may try different configurations. If you are experiencing heat transference to the upper compartment, try placing the Lava Rocks on the sides of the food container, or placing both beneath the container.
Yes, it's covered by a 1-year limited warranty. This warranty does not cover damage resulting from improper use, accidents or improper handling. Please email info@LavaLunch.com to begin the warranty claim process.
If you are unhappy with your Lava Lunch purchase for any reason, you may return it within 30 days of receipt, and we will refund the price of the product. Please email us at firstname.lastname@example.org for a Return Authorization Number. Returns will not be accepted without a Return Authorization Number.
You will be refunded for the merchandise total, plus applicable sales tax paid, less a re-stocking fee of $3.00. Shipping and handling charges are not refundable unless the product arrived damaged or the incorrect product was shipped. Please allow 14 business days for us to process your return. Please allow 1 to 2 billing cycles for the credit to show up on your credit card statement.
No Exchange Policy
We do not accept orders or items for exchange. If you need a different size, colour or product please return your item(s) for a refund and place a new order at your convenience. Placing the new order now just ensures that you will receive it quickly, and that it won’t go out of stock.
Returning Damaged Merchandise Purchased Online
If your merchandise was damaged in transit or is found to be defective upon arrival, please email email@example.com to arrange for a replacement. We will ask you to provide photos of the damage for our internal research purposes.
Orders placed before 2pm EST will be shipped same day. After 2pm, orders will be shipped from our warehouse within 24 hours. You will receive an email with your shipment's tracking information once your package leaves our warehouse. Typical transit time is 5-7 business days.