How to Fix Undercooked Tamales (Steamer Guide)
To fix undercooked tamales, place them upright in a covered steamer with hot water below the rack and maintain a steady simmer. Steam for 20–30 minutes, then rest one tamale for 10–15 minutes before checking the masa. If it is still wet or gummy, steam the batch again and retest.
A tamale can look finished on the outside and still have masa that is soft, sticky, or paste-like inside. That is frustrating, especially when you have already spent hours preparing the filling, wrapping, and steaming. The good news is that undercooked tamales can usually be fixed with more steam.
The key is to keep the tamales above the water, keep the pot covered, and judge the masa after it has rested. I use that sequence to separate a true doneness problem from masa that is simply too hot to assess. It also helps avoid a common mistake: turning up the heat without checking whether the pot still has water.
Set Up the Steamer and Tamales
A steamer works by holding hot vapor around the tamales while water simmers beneath them. The rack keeps the tamales out of the water, and the lid traps steam. Use a stable pot and a rack that fits securely, with enough room for steam to move around the tamales.
Choose stainless steel, aluminum, or enamelled cookware that is rated for your stovetop. For general food contact, lined copper is preferable to bare copper. Follow the cookware maker’s instructions, especially for heat settings and care.
- Check the pot and rack. The rack must sit above the water and support the tamales. A steamer insert can also work if it holds them clear of the water.
- Add hot water. Pour it into the pot, stopping below the rack. The tamales should cook in steam, not soak in water.
- Arrange the tamales upright. Set them with their open ends facing up. Leave some space between them so steam can circulate. Avoid packing them so tightly that they cannot stand securely.
- Cover the pot. A secure lid helps keep steam inside. If your steamer has a manufacturer’s setup guide, use it.
At sea level, water boils at 212°F (100°C). At higher elevations, it boils at a lower temperature, so steam temperature is lower too. Do not try to solve slow cooking by letting the pot run dry or by using a heat setting that is not safe for your cookware.
Re-Steam and Check for Doneness
Re-steaming gives the masa more time in moist heat so it can finish setting. Keep the lid on and the water at a steady simmer, then check one tamale after a 20–30-minute interval. A short rest matters: hot masa can seem softer and stickier than it will after cooling slightly.
Start the pot over medium-high heat until the water reaches a steady simmer. Then adjust the heat to maintain that simmer with the lid on. The water does not need to boil hard. Check the pot from time to time, and add hot water if the level is getting low. Keep it below the rack.
After 20–30 minutes, carefully remove one tamale with tongs. Let it rest for 10–15 minutes, covered or loosely wrapped, before you open it. Peel back the husk and inspect the masa. It should be set, not wet or paste-like, and should release from the husk cleanly. If it sticks or looks gummy, return the tamales to the steamer for another 20–30 minutes, then test again.
| What you notice after resting | What it may mean | What to do |
|---|---|---|
| Masa is wet, paste-like, or gummy | The masa may need more steaming | Steam the batch for another 20–30 minutes, then rest and test one |
| Masa holds its shape but sticks heavily to the husk | It may still need time, or it may have been tested while too hot | Rest the test tamale for the full 10–15 minutes; re-steam if it remains gummy |
| Masa feels set and releases cleanly | The masa is likely done | Stop steaming and let the batch rest before serving |
| The pot has little water left | Steam production may stop, and the vessel could scorch | Add hot water carefully, keeping it below the rack |
| Meat filling is being reheated | The filling needs its own temperature check | Check the center of the filling for 165°F (74°C); still assess the masa separately |
A meat filling reaching 165°F (74°C) is a useful reheating check, but it does not prove that the masa is done. Treat these as two separate checks: use a food thermometer for the filling, and use the rested masa’s texture and release from the husk to judge the masa.
Rest, Clean, and Care for the Cookware
Resting gives hot masa time to firm before you judge its texture. After steaming, turn off the heat and let the tamales rest for 10–15 minutes, covered or loosely wrapped. Handle the pot with care, and follow the cookware maker’s directions when cooling and washing it.
Open the lid away from your face and hands. Steam can escape suddenly and cause burns. When you add water during cooking, take care around the hot pot and follow the cookware maker’s directions. Do not pour cold water into a hot pot or onto hot cookware; a sudden temperature change can damage some vessels.
Let the cookware cool before washing it. There is no single safe cooling interval for every pot, so follow the maker’s care instructions rather than assuming a universal limit. If food or water has scorched onto the pot, use the cleaning method recommended for that material.
A useful troubleshooting pattern is to change one thing at a time. If the masa was gummy but the water stayed below the rack, add another steaming interval. If the pot was nearly dry, restore the water level and keep checking it. This makes it easier to correct the cause instead of just increasing the heat.
Serve Safely and Preserve Texture
Once the masa releases cleanly and feels set after resting, stop steaming. Let the tamales rest briefly before serving so they are easier to handle. For meat-filled tamales being reheated, check that the filling reaches 165°F (74°C), even when the masa already appears done.
A common troubleshooting case is a batch that has steamed for a long time but still seems gummy when opened. First, let one tamale rest for the full 10–15 minutes before judging it. If it remains wet or paste-like, put the batch back over simmering water for another 20–30 minutes. This check-and-rest cycle is more useful than guessing from the total cooking time alone.
If you need to re-steam in stages, keep the batch covered between checks where practical, and avoid leaving cooked tamales at room temperature for an extended period. When reheating leftovers, handle and store them safely, and verify the temperature of meat filling. Once the masa is set, more steaming is not a fix for every texture issue; use the rested test tamale as your guide.
The main takeaway is simple: keep water below the tamales, maintain a steady covered simmer, and check texture only after a short rest. This gives you a clear next step without risking a dry pot or judging hot masa too soon.
Frequently Asked Questions
These quick answers cover the most common decisions when tamales seem undercooked. Use the same basic test each time: rest one tamale for 10–15 minutes, then check whether the masa is set and releases from the husk. Steam again in 20–30-minute increments if it remains gummy or paste-like.
How do I fix undercooked tamales?
Put them upright in a covered steamer with water below the rack. Simmer for 20–30 minutes, rest one tamale for 10–15 minutes, and check the masa. Repeat if it remains wet or gummy.
Can I put tamales directly in the water?
No. Keep them above the water on a rack or steamer insert. They should cook in steam, not sit in or absorb the water.
How long should I steam tamales again?
Steam for 20–30 minutes before each doneness check. The needed time can vary, so rely on the rested masa rather than a single fixed total time.
How can I tell if tamale masa is done?
After resting, the masa should be set rather than wet or paste-like and should release cleanly from the husk. If it is gummy or sticks heavily, steam longer and test again.
Should I check the masa while it is hot?
Let one tamale rest for 10–15 minutes first. Hot masa can be soft and sticky, so checking it immediately may make it seem less done than it is.
What temperature should a meat filling reach when reheating?
Check the center of the meat filling for 165°F (74°C). That temperature check does not replace the separate texture check for the masa.
What if the steamer runs low on water?
Add hot water carefully and keep it below the rack. Do not let the pot boil dry; it can scorch the vessel and interrupt steaming.
Can I use an aluminum or enamelled pot?
Yes, if the cookware is suitable for your stovetop and used according to its maker’s instructions. Stainless steel is also suitable; lined copper is preferable to bare copper for general food contact.
Why do tamales seem to take longer at high elevation?
Water boils at a lower temperature at higher elevations, so steam is cooler than it is at sea level. Keep the simmer steady and continue checking the masa in 20–30-minute increments.
Can I fix tamales that are still gummy after one extra steaming?
Yes. Rest another test tamale for 10–15 minutes. If the masa is still wet or paste-like, steam the batch for another 20–30 minutes, checking that water remains below the rack.
(This article was written by one of our staff writers, Andrew P. Morrison. Visit our Meet the Team page.)
