Quick answer
Yes, you can use Stasher bags for sous vide cooking. Their food-grade platinum silicone is heat-resistant and safe for the low, steady temperatures of water bath cooking. Just keep the water below 212°F (100°C) and use the water displacement method to remove air before sealing.
Why Stasher Bags Work for Sous Vide
Stasher bags are made from 100% pure platinum silicone, a material that withstands the typical sous vide temperature range of 130°F to 185°F (54°C to 85°C) without leaching chemicals or melting. Unlike single-use plastic bags, they are designed to be reused hundreds of times, making them a sustainable choice for frequent sous vide cooks. Their airtight pinch-lock seal keeps water out and flavor in, which is essential for even cooking.
Temperature Limits to Know
While Stasher bags are heat-resistant, they are not meant for boiling or direct stovetop use. For sous vide, keep your water bath below 212°F (100°C). Most recipes call for temperatures well under that, so you are safe. If you plan to sear meat after sous vide, remove the bag contents first — never place a Stasher bag in a hot pan or oven.
Step-by-Step: Sous Vide with Stasher Bags
- Prepare your ingredients and bag: Season your food and place it inside a clean Stasher bag. Do not overfill — leave enough room to seal the top without food touching the closure. Common mistake: overfilling makes it hard to remove air and can cause the seal to leak.
- Remove air using the water displacement method: Slowly lower the open bag into a bowl of water, letting the water pressure push air out. Seal the bag just before the water reaches the closure line. Checkpoint: the bag should feel flat against the food with no large air pockets. Air pockets can cause floating and uneven cooking.
- Set your sous vide circulator and submerge: Preheat your water bath to the desired temperature (e.g., 135°F for chicken). Clip the sealed Stasher bag to the side of the container or use a rack to keep it submerged. Common mistake: letting the bag float. Use a clip or weight to keep it fully underwater for consistent heat transfer.
- Cook and finish: Cook for the recommended time based on your recipe. When done, remove the bag, open it carefully to avoid steam burns, and pat the food dry before searing or serving. Checkpoint: if you sear after sous vide, never put the Stasher bag itself in a hot pan or oven — transfer the food to a separate pan.
Product facts
- Reusable Silicone Food Storage & Sandwich Bags: Stasher reusable silicone bags & stretch lids are the simple alternative that replaces hundreds of single-use plastic bags. Designed to last forever. Guaranteed. For sous vide cooking, this means you can reuse the same bag dozens of times without worrying about wear, saving money and reducing plastic waste compared to disposable vacuum-seal bags.
