What to Look for in a Kitchen Storage Jar
By Robert Welch® Designs | Stainless-steel cutlery, knives & cookware | Published: 2026-10-25
Category: Buying Guides
Learn the key features to consider when choosing storage jars for your kitchen, including material, seal, and design. We also highlight a versatile set from Robert Welch.
Quick answer
Focus on airtight seals, durable material, and stackable design. For everyday pantry use, a set of small, shatterproof jars like the Robert Welch Signature Storage Jar Small 3 Piece Set offers a practical balance of visibility and space-saving.
Material matters: glass vs. plastic vs. Tritan
Glass is classic and non-porous, but it can break easily. Plastic is lightweight but may stain or warp over time. Eastman Tritan, used in the Robert Welch Signature jars, is a shatterproof, food-safe alternative that offers the clarity of glass without the fragility.
If you drop jars often or have children in the kitchen, Tritan or a high-quality BPA-free plastic is a safer choice. For long-term storage of dry goods, glass remains a reliable option.
Seal and freshness: airtight or not?
An airtight seal is critical for keeping contents crisp, especially for coffee, flour, or sugar. Look for jars with silicone gaskets or tight-fitting lids. The Robert Welch Signature jars have a secure closure that helps maintain freshness.
For items you use daily, a less airtight lid may be acceptable for easier access. For long-term storage, always prioritize a tight seal.
Size and stackability: saving counter space
Small storage jars (around 500ml or less) are ideal for spices, tea bags, or small snacks. A set like the Robert Welch Signature Storage Jar Small 3 Piece Set stacks neatly, making efficient use of vertical space on your counter or in a cabinet.
If you store larger quantities of pasta or rice, consider medium or large jars. For a tidy, organized pantry, a set of uniform small jars is a smart choice.
Decision rules for choosing a storage jar
- Check the material: Choose glass for classic look and non-porous surface, Tritan for shatterproof clarity, or BPA-free plastic for lightweight use.
- Test the seal: An airtight lid with a silicone gasket is best for freshness. A simple snap lid is fine for items you use up quickly.
- Consider size and stacking: Small jars (under 1L) are great for spices and snacks. Stackable designs save counter and cabinet space. Measure your shelf depth before buying to ensure a good fit.
Product spotlight
- Signature Storage Jar Small, 3 Piece Set: This set is made from fully food safe, shatterproof Eastman Tritan and stacks neatly on top of each other to save space. You get the visibility of glass without the breakage risk, and the stackable design helps keep your pantry tidy.

Signature Storage Jar Small, 3 Piece Set
Who should buy what?
Best for
- Home cooks who want a clear, shatterproof jar for pantry staples
- Anyone looking to organize a small kitchen with stackable containers
Not ideal for
- Bulk storage of large quantities (look for bigger jars or canisters instead)
- Microwave or freezer use (Tritan jars are not designed for extreme temperatures)
