10 Best Airtight Seals: Keep Food Fresh Longer

What are the best airtight seals for keeping your food fresh?
Discover top recommendations based on real user experiences, like jars of jam staying sweet for weeks with a tight seal.

Airtight seals help keep food fresh in jars for longer. Many people enjoy using them to store fruits and vegetables at home. One user shared how her jam stayed sweet for weeks thanks to a tight seal.

You can trust our guide to pick the best options. Read on to find out more about these useful seals.

List of Top 10 Airtight Seals

Image Title Best For Price
WHTCHSU 12 Pieces Rubber Seals for Glass Jars, Airtight and Leakproof Silicone Replacement Gasket Sealing Rings for Mason Jars, Elastic and Fits Most Sizes (White) WHTCHSU 12 Pieces Rubber Seals for Glass Jars, Airtight and Leakproof Silicone Replacement Gasket Sealing Rings for Mason Jars, Elastic and Fits Most Sizes (White)

This product is perfect for home cooks who make homemade jams and sauces to keep food fresh. It works great for families who store fruits and vegetables without spills.

7 Pack Rubber Seals for Glass Jars, Airtight Silicone Jar Gaskets, Leakproof Rubber Gasket for Canning Mason Jars - 3.75 Inches Diameter, Fits Most Sizes (White) 7 Pack Rubber Seals for Glass Jars, Airtight Silicone Jar Gaskets, Leakproof Rubber Gasket for Canning Mason Jars – 3.75 Inches Diameter, Fits Most Sizes (White)

This product is perfect for anyone who uses glass jars. It’s also great for people who want to keep food fresh and easy to clean.

12 Pieces Rubber Seals Rings for Glass Jars, Airtight Silicone Replacement Gasket, Leakproof Silicone Gasket Sealing Rings for Mason Jars, Elastic and Fits Most Sizes (White) 12 Pieces Rubber Seals Rings for Glass Jars, Airtight Silicone Replacement Gasket, Leakproof Silicone Gasket Sealing Rings for Mason Jars, Elastic and Fits Most Sizes (White)

This product is perfect for people who make homemade food like jams, sauces, and pickles at home. It is also great for crafters who need to store paints, supplies, and other items safely.

Outus 8 Pieces 3.75 Inches Silicone Jar Gaskets Replacement Silicone Seals Airtight Gasket Sealing Rings for Regular Mouth Canning Jar(White) Outus 8 Pieces 3.75 Inches Silicone Jar Gaskets Replacement Silicone Seals Airtight Gasket Sealing Rings for Regular Mouth Canning Jar(White)

These silicone jar gaskets are perfect for home cooks who love preserving jams, sauces, and fresh vegetables. They’re also ideal for DIY makers who need to seal jars for paints or crafts with ease.

Silicone Replacement Gasket, Airtight Rubber Seals Rings for Mason Jar Lids, Leak-Proof Canning Silicone Fitting Seals for Glass Clip Top Jars (White, 10pcs) Silicone Replacement Gasket, Airtight Rubber Seals Rings for Mason Jar Lids, Leak-Proof Canning Silicone Fitting Seals for Glass Clip Top Jars (White, 10pcs)

This silicone replacement gasket is perfect for home canners who make jams, pickles, and preserves, keeping food fresh and leak-free. It’s also great for families who store spices, herbs, and dehydrated foods in their pantry or fridge with easy-to-use seals.

8PCS Rubber Seals for Glass Jars, Airtight Silicone Replacement Gasket,Food-Grade Silicone Gaskets (3.75 8PCS Rubber Seals for Glass Jars, Airtight Silicone Replacement Gasket,Food-Grade Silicone Gaskets (3.75″ Diameter,Fits Mason Jars),Leakproof,Airtight Rings for Food Storage,Canning(White)

This product is perfect for home cooks who want to store food safely in mason jars. It’s also great for DIY enthusiasts organizing supplies in airtight containers.

12 Pieces Replacement Silicone Gasket Seals for Jars, Leakproof Airtight Silicone Gasket Sealing Rings, 3.75 x 3.75 Inches, for Glass Clip Top Jars 0.35/0.5/1/ 1.5/2 Liter Canning Jar (Translucent) 12 Pieces Replacement Silicone Gasket Seals for Jars, Leakproof Airtight Silicone Gasket Sealing Rings, 3.75 x 3.75 Inches, for Glass Clip Top Jars 0.35/0.5/1/ 1.5/2 Liter Canning Jar (Translucent)

These replacement silicone gasket seals are perfect for home canners who need to keep their clip top jars airtight when the old seals wear out. They are also great for crafters using jars to store paints or for anyone organizing kitchen items like fruits, vegetables, and soaps.

Litaibai Transparent Window Weather Sealing Tape - 2-Inch x 33 Feet, Airtight Insulation Tape That Blocks Drafts, No Residue Removable Adhesive Litaibai Transparent Window Weather Sealing Tape – 2-Inch x 33 Feet, Airtight Insulation Tape That Blocks Drafts, No Residue Removable Adhesive

This tape is perfect for homeowners who want an easy way to block drafts on windows and doors. It’s also ideal for DIY fans needing a removable seal for energy savings during cold or wet seasons.

10 Pcs Silicone Replacement Gasket, Airtight Rubber Seals Rings for Mason Jar Lids, Leak-Proof Canning Fitting Seals 2.8 inch Canning Lids Cookware 10 Pcs Silicone Replacement Gasket, Airtight Rubber Seals Rings for Mason Jar Lids, Leak-Proof Canning Fitting Seals 2.8 inch Canning Lids Cookware

This silicone gasket set is perfect for home cooks who preserve food in mason jars and need reliable seals to keep things fresh and leak-proof. It’s also great for anyone who stores items in jars and wants easy replacements for damaged lids.

ASTER 8 Pcs Replacement Silicone Jar Gaskets, Airtight Silicone Jar Rubbers Seals Rings for Mason Canning Jars Mouth Canning, 3.75 Inch (White) ASTER 8 Pcs Replacement Silicone Jar Gaskets, Airtight Silicone Jar Rubbers Seals Rings for Mason Canning Jars Mouth Canning, 3.75 Inch (White)

This product is perfect for home cooks and canners who want to keep food fresh in their Mason jars. It’s also ideal for crafters and families sealing things like fruits, vegetables, or paint to stop air and spills.

Detailed Reviews

Expert picks shine here with the top 10 airtight seals, chosen through careful reviews and real user feedback for top performance and value. These seals fit jars just right, keeping food fresh and safe with easy use at good prices for anyone. Dive in now to find the perfect one that suits your needs and boosts your kitchen game.

1. WHTCHSU 12 Pieces Rubber Seals for Glass Jars, Airtight and Leakproof Silicone Replacement Gasket Sealing Rings for Mason Jars, Elastic and Fits Most Sizes (White)

WHTCHSU 12 Pieces Rubber Seals for Glass Jars, Airtight and Leakproof Silicone Replacement Gasket Sealing Rings for Mason Jars, Elastic and Fits Most Sizes (White)

Airtight and leakproof, these silicone gaskets seal glass jars with ease. They keep food fresh longer. Store fruits, veggies, jams, and more safely.

Made from durable and safe material, they are odorless. These seals fit most jars at 2.75 inches inside and 3.75 inches outside.

You get 12 pieces in the pack. They are soft, elastic, and reusable for many uses.

Pros Cons
  • Airtight seal locks in freshness.
  • One-size-fits-most for standard jars.
  • Reusable and easy to clean.
  • Safe, odorless silicone for foods.
  • Versatile use in storage and crafts.
  • Limited fit: Only fits standard 3-inch lids.
  • Wears out: Seals can degrade with frequent use.
  • May leak: If not seated properly on jars.

Perfect For:

This product is perfect for home cooks who make homemade jams and sauces to keep food fresh. It works great for families who store fruits and vegetables without spills.

Ready to Purchase?

2. 7 Pack Rubber Seals for Glass Jars, Airtight Silicone Jar Gaskets, Leakproof Rubber Gasket for Canning Mason Jars – 3.75 Inches Diameter, Fits Most Sizes (White)

7 Pack Rubber Seals for Glass Jars, Airtight Silicone Jar Gaskets, Leakproof Rubber Gasket for Canning Mason Jars - 3.75 Inches Diameter, Fits Most Sizes (White)

Keep your food fresh with these 7 pack silicone seals. They fit most Mason jars and measure 3.75 inches across. These leakproof gaskets replace old ones fast.

Install them with ease on your jars. The 2.75 inch inside fits perfectly for a tight seal. Lock in flavor and keep air out.

Clean these seals simply after use. They are durable and reusable for daily needs. Use them for canning or storage to save freshness.

Pros Cons
  • Replace cracked seals for freshness.
  • Leak-proof seal locks in flavor.
  • Easy to install on most jars.
  • Easy to clean and reusable.
  • Fits most jars for easy use.
  • Might not fit all jar sizes perfectly.
  • Only one color option available (White).
  • Silicone feel may differ from original rubber.

Perfect For:

This product is perfect for anyone who uses glass jars. It’s also great for people who want to keep food fresh and easy to clean.

Ready to Purchase?

3. 12 Pieces Rubber Seals Rings for Glass Jars, Airtight Silicone Replacement Gasket, Leakproof Silicone Gasket Sealing Rings for Mason Jars, Elastic and Fits Most Sizes (White)

12 Pieces Rubber Seals Rings for Glass Jars, Airtight Silicone Replacement Gasket, Leakproof Silicone Gasket Sealing Rings for Mason Jars, Elastic and Fits Most Sizes (White)

Keep your food fresh with these airtight silicone seals. They form a leakproof seal for glass jars. Store fruits, vegetables, and jams safely.

These seals fit most wide-mouth mason jars. They measure 2.9 inches inside and 3.7 inches outside.

The set includes 12 reusable seals. They clean easily. Use them for foods, toiletries, and craft supplies.

Pros Cons
  • Airtight seals keep your food fresher, longer!
  • Safe, odorless material guarantees food safety.
  • Universal fit for most wide-mouth mason jars.
  • Easy to clean and reuse.
  • Many uses! Store food, soaps, crafts.
  • Soft silicone may tear with rough use.
  • Limited color options, only white available.
  • Might not fit very narrow jar lids perfectly.

Perfect For:

This product is perfect for people who make homemade food like jams, sauces, and pickles at home. It is also great for crafters who need to store paints, supplies, and other items safely.

Ready to Purchase?

4. Outus 8 Pieces 3.75 Inches Silicone Jar Gaskets Replacement Silicone Seals Airtight Gasket Sealing Rings for Regular Mouth Canning Jar(White)

Outus 8 Pieces 3.75 Inches Silicone Jar Gaskets Replacement Silicone Seals Airtight Gasket Sealing Rings for Regular Mouth Canning Jar(White)

Upgrade your canning game with these Outus 8 Pieces Silicone Jar Gaskets. They fit 3.75-inch jar mouths for easy sealing.
Each gasket is soft and flexible to keep foods fresh. The seals stay tight and clean inside.
They work for all kinds of jars you use at home. Wash and reuse them many times.

Pros Cons
  • 8 durable seals keep jars airtight and fresh.
  • Safe silica gel is odorless and food-friendly.
  • Washable and reusable for easy cleaning.
  • Universal fit for most standard jars.
  • Flexible aren’t unreliable plastic seals; these last longer.
  • May not fit all jar types
  • Can be slippery when wet
  • Only comes in white color

Perfect For:

These silicone jar gaskets are perfect for home cooks who love preserving jams, sauces, and fresh vegetables. They’re also ideal for DIY makers who need to seal jars for paints or crafts with ease.

Ready to Purchase?

5. Silicone Replacement Gasket, Airtight Rubber Seals Rings for Mason Jar Lids, Leak-Proof Canning Silicone Fitting Seals for Glass Clip Top Jars (White, 10pcs)

Silicone Replacement Gasket, Airtight Rubber Seals Rings for Mason Jar Lids, Leak-Proof Canning Silicone Fitting Seals for Glass Clip Top Jars (White, 10pcs)

Keep your food fresh with these silicone replacement gaskets. They create an airtight seal for your jars.

These durable rings are easy to use. They are BPA-free and reusable. You can use them for many things.

Pros Cons
  • Airtight seal keeps food fresh longer.
  • Fits perfectly on standard mason jars.
  • BPA-free silicone is safe and durable.
  • Easy replacement in just seconds.
  • Colorful options help identify contents.
  • Doesn’t fit wide-mouth mason jars.
  • Soft silicone may need careful fitting.
  • Limited to specific jar sizes only.

Perfect For:

This silicone replacement gasket is perfect for home canners who make jams, pickles, and preserves, keeping food fresh and leak-free. It’s also great for families who store spices, herbs, and dehydrated foods in their pantry or fridge with easy-to-use seals.

Ready to Purchase?

6. 8PCS Rubber Seals for Glass Jars, Airtight Silicone Replacement Gasket,Food-Grade Silicone Gaskets (3.75″ Diameter,Fits Mason Jars),Leakproof,Airtight Rings for Food Storage,Canning(White)

8PCS Rubber Seals for Glass Jars, Airtight Silicone Replacement Gasket,Food-Grade Silicone Gaskets (3.75

These rubber seals are made from food-grade silicone that is soft and flexible. They last through hot water, cold fridge, and daily use in your kitchen.

The seals create a tight, airtight lock on glass jars to keep air and moisture out. This helps food like jams and fruits stay fresh and tasty longer.

They clean easily with just water and dry by air. You swap them on jars without any tools in seconds. Use them for kitchen storage or DIY projects like bath salts.

Pros Cons
  • Safe food-grade silicone for everyday use.
  • Creates a secure, leakproof and airtight seal.
  • Easy to clean, washable, and reusable.
  • Versatile for kitchen and DIY projects.
  • Universal fit for wide-mouth mason jars.
  • Limited to specific jar sizes only
  • Not dishwashersafe
  • May need replacement with heavy use

Perfect For:

This product is perfect for home cooks who want to store food safely in mason jars. It’s also great for DIY enthusiasts organizing supplies in airtight containers.

Ready to Purchase?

7. 12 Pieces Replacement Silicone Gasket Seals for Jars, Leakproof Airtight Silicone Gasket Sealing Rings, 3.75 x 3.75 Inches, for Glass Clip Top Jars 0.35/0.5/1/ 1.5/2 Liter Canning Jar (Translucent)

12 Pieces Replacement Silicone Gasket Seals for Jars, Leakproof Airtight Silicone Gasket Sealing Rings, 3.75 x 3.75 Inches, for Glass Clip Top Jars 0.35/0.5/1/ 1.5/2 Liter Canning Jar (Translucent)

Keep your pantry treasures safe and fresh with these top-notch replacement silicone gasket seals. Our pack gives you 12 translucent silicone seals that fit perfectly on regular mouth canning jars.

Made from soft, durable silicone, these seals don’t yellow easily and last a long time. They measure 3.75 inches in outer diameter, so they clip snugly onto your jars to create an airtight barrier.
Use them for canning jars from 0.35 to 2 liters. Store fruits, veggies, or homemade foods in them. Grab yours now for fresher meals every day.

Pros Cons
  • Get 12 seals for all your jars!
  • Airtight seal keeps food fresh longer.
  • Durable silicone means long-lasting use.
  • Fits many jar sizes for convenience.
  • Great for food, crafts, and more!
  • Might not fit all jar brands perfectly.
  • Only one color option is available.
  • Need to confirm correct jar size before buying.

Perfect For:

These replacement silicone gasket seals are perfect for home canners who need to keep their clip top jars airtight when the old seals wear out. They are also great for crafters using jars to store paints or for anyone organizing kitchen items like fruits, vegetables, and soaps.

Ready to Purchase?

8. Litaibai Transparent Window Weather Sealing Tape – 2-Inch x 33 Feet, Airtight Insulation Tape That Blocks Drafts, No Residue Removable Adhesive

Litaibai Transparent Window Weather Sealing Tape - 2-Inch x 33 Feet, Airtight Insulation Tape That Blocks Drafts, No Residue Removable Adhesive

The tape is clear and strong. The Litaibai tape blocks drafts.

It uses a strong yet safe adhesive. It makes an airtight seal. It removes cleanly with no residue.

Use it on smooth glass, metal, and plastic. It’s a quick DIY weatherproofing fix for doors and windows.

Pros Cons
  • Durable tape seals windows tight.
  • Airtight insulation blocks drafts easily.
  • Removes cleanly without any mess.
  • Versatility works on doors and more.
  • Strong adhesion lasts through weather.
  • Only works on smooth surfaces.
  • Ideal for temporary use only.
  • Requires clean and dry surface.

Perfect For:

This tape is perfect for homeowners who want an easy way to block drafts on windows and doors. It’s also ideal for DIY fans needing a removable seal for energy savings during cold or wet seasons.

Ready to Purchase?

9. 10 Pcs Silicone Replacement Gasket, Airtight Rubber Seals Rings for Mason Jar Lids, Leak-Proof Canning Fitting Seals 2.8 inch Canning Lids Cookware

10 Pcs Silicone Replacement Gasket, Airtight Rubber Seals Rings for Mason Jar Lids, Leak-Proof Canning Fitting Seals 2.8 inch Canning Lids Cookware

These gasket rings fit standard 2.8-inch mason jar lids for regular and wide-mouth jars. They help keep jars airtight and leak-free.

It is made from food-grade silicone. It stays soft and seals well. You get 10 rings in the pack.

Easy to install. No tools needed for a secure fit.

Pros Cons
  • Perfect fit for your mason jar lids!
  • Food-grade silicone: Safe and always flexible.
  • Get 10 seals: A fantastic value!
  • Easy to use: Just place and seal.
  • Limited to 2.8-inch lids only.
  • May need frequent replacement with use.
  • Silicone can absorb odors over time.

Perfect For:

This silicone gasket set is perfect for home cooks who preserve food in mason jars and need reliable seals to keep things fresh and leak-proof. It’s also great for anyone who stores items in jars and wants easy replacements for damaged lids.

Ready to Purchase?

10. ASTER 8 Pcs Replacement Silicone Jar Gaskets, Airtight Silicone Jar Rubbers Seals Rings for Mason Canning Jars Mouth Canning, 3.75 Inch (White)

ASTER 8 Pcs Replacement Silicone Jar Gaskets, Airtight Silicone Jar Rubbers Seals Rings for Mason Canning Jars Mouth Canning, 3.75 Inch (White)

You get 8 white silicone jar gaskets. They fit most Mason jars for canning and storing.
These replacements are soft and durable. Wash them with warm water and reuse them many times.
Use them to seal jars tight for food. They keep fruits and vegetables fresh. Buy now to save your jars.

Pros Cons
  • Get 8 soft seals for easy jar fits.
  • Food-safe silicone stays fresh and clean.
  • Universal size works on most jars.
  • Wash and reuse without hassle.
  • Airtight protection keeps food safe longer.
  • May not fit all jar sizes perfectly
  • Gets slippery when wet
  • Small quantity for big jobs

Perfect For:

This product is perfect for home cooks and canners who want to keep food fresh in their Mason jars. It’s also ideal for crafters and families sealing things like fruits, vegetables, or paint to stop air and spills.

Ready to Purchase?

Buying Guide

Airtight seals keep food very fresh. They are great for jars. One user’s jam stayed sweet for weeks!

These seals help keep all kinds of food fresh. They are easy to clean and reuse. Here’s what you should think about before you buy:

  • Material: Look for food-grade silicone. This means it is safe for food. It should also be durable to last a long time.

  • Size: Measure your jar openings. Make sure the seals fit well. Seals that are too big or small will not work.

  • Quantity: Think about how many seals you need. Some packs have more than others. Buy enough for all your jars.

  • Ease of Use: Seals should be easy to install. They should also be easy to clean. Look for seals you can wash and reuse.

  • Leakproof: The main goal of the seal is to prevent leaks. Good seals make a tight fit. They keep air and moisture out.