How to use your containers

These are made from bamboo and sugarcane, not plastic. That's the whole point of them, and it's also why they heat a little differently than the plastic tub you've been using. Read this once. It takes two minutes, your food comes out better, and the container makes it through in one piece.

 

Start here

• Fill it. Let very hot food cool for a few minutes before you snap the lid on.
• Fridge or freezer. Leave a little room at the top so the food can expand.
• Reheat in the microwave only. Lid off, or flipped upside down and resting loosely on top.
• Medium power, short bursts, stir between rounds. Hot all the way through means 165 °F in the middle.

If you ever see the container softening, bubbling, or warping while it heats, stop. Let it cool before you pick it up.

Reheat from the fridge

• Take the lid off, or flip it over and rest it loosely on top as a splatter guard.
• Use 50 to 70% power in 30 to 60 second rounds. Stir between rounds.
• No turntable? Spin the container yourself.
• One serving usually takes 1 to 4 minutes total. Yours might run shorter or longer.
• Never run it empty. Always heat it with food or liquid inside.
• Dry or fatty food runs hotter than you expect. Drop the power and stir more often.
• Let it stand a minute or two, then check the thickest part for 165 °F.

Reheat from frozen

Thaw it overnight in the fridge when you can. It heats more evenly that way. Going straight from frozen:

• Lid off or inverted loosely on top, same as above.
• Start at 30 to 50% power for 30 to 60 seconds, just to soften it.
• Break it up and stir, then move to 50 to 70% in short rounds until it's hot through.
• Let it rest, then check the center for 165 °F.
• Don't drop a rock-hard meal into one long, high-power blast. That's where hot spots come from.

Freeze it

• Leave a gap at the top. Food expands as it freezes.
• Let hot food cool briefly before you seal it and freeze it.
• Keep containers upright until they're frozen solid. You get a better seal.
• Eat within 2 to 3 months for the best texture.

Microwave only. Nothing else.

Dry, direct heat damages the fiber body and the lining, and it's a fire hazard. Keep these out of:

• Ovens, conventional or convection
• Toaster ovens
• Air fryers
• Stovetops and broilers
• Microwave grill, crisping, or air-fry modes

Why short rounds and medium power

Plant fiber isn't plastic. A long, high-power blast dumps heat into one spot, and the plant-based lining can bubble or soften where it gets hit hardest. Shorter rounds at lower power spread that heat out. Your food still gets to 165 °F. The container just survives the trip.

The lining is PLA, a plant-based moisture barrier. It's not BPA plastic, and it doesn't behave like it. We're still improving the formula. The goal is freezer to microwave with no thinking required, and we're not all the way there yet. Thanks for being early.

Use them once

These are built as a single-use, plant-based alternative to plastic, not a tub you keep for years. Single use is what we recommend.

If you rinse and reuse one in a pinch:

• Hand wash only, with mild soap in cool or warm water.
• Air dry completely before you refill it.
• Stop using it if the lining looks bubbled, thinned, cracked, or soft.
• Never use a dishwasher, and don't leave it soaking.

Carrying it around

• The snap-on lid handles a normal commute. Keep it upright, especially with thin liquids.
• Open it away from your face after heating. Steam burns.
• Support the bottom when the food's hot.

What it's made of

• Bamboo fiber and sugarcane bagasse. No trees are harvested for the pulp.
• Plant-based PLA lining that resists moisture.
• BPA plastic free.
• Microwave safe for reheating. Freezer safe.
• Commercially compostable, certified to meet ASTM standards for commercial composting facilities, which may not exist in your area. Check locally, and scrape the food out first.

Food safety basics

• Reheat leftovers to an internal temperature of 165 °F. Stir so you don't leave cold pockets.
• Get perishable food back in the fridge promptly.
• Don't leave prepped food out for more than 2 hours.
• When in doubt, throw it out.

The short version

• Short rounds, never more than 3 minutes at a stretch.
• Stir between rounds.
• Under 6 minutes total for a single serving.
• Use a turntable, or rotate the container yourself.
• Never heat it empty.
• Lid off, or resting loosely upside down on top.

Follow your microwave manufacturer's instructions too. Keep these out of reach of children while they're heating and right after.

Something go wrong?

If a container softens unexpectedly or anything else goes sideways while you're heating it, stop using it and email us. Send your order number and a quick description of what happened, plus photos if you have them.

Email: info@stealthhealthcontainers.com