Great question—size depends on how you cook and store.

• Everyday use: 4 oz jars are a popular pick for ground spices and blends. They typically hold a few tablespoons to about a half cup by volume, depending on texture.
• Whole spices or larger blends: Consider 6–8 oz so you’re not refilling as often.
• Check dimensions: Look at height, diameter, and mouth opening to fit measuring spoons or a shaker top if included.
• Storage style: Short, uniform jars fit drawers; taller jars maximize shelf space.
• Labeling: Smooth-sided cans make labeling easier; a funnel can help reduce mess when filling.

Candle tins are a popular DIY choice, and a few basics go a long way.

• Choose heat-ready tins: Look for metal containers with snug lids; avoid using damaged or dented tins.
• Prep and test: Wash, dry thoroughly, and test a small pour to check fit and heat tolerance.
• Wicks and wax: Start with one wick sized for your tin’s diameter; multi-wick setups may require testing.
• Burn safely: Always place on a heat-safe, level surface away from drafts. Don’t leave burning candles unattended.
• Cooling and handling: Let wax set fully before moving; results can vary based on wax type and room temperature.

Care can help your containers last longer.

• Metal tins: Hand wash with mild soap, rinse, and dry immediately to help prevent rust. Avoid soaking and abrasive scrubbers that can scratch finishes.
• Glass jars: Many are top-rack dishwasher friendly, but it’s best to check the product description. Hand washing is a safe default.
• Lids and liners: Wash silicone or plastic parts gently; wooden or bamboo lids should be hand washed and dried promptly.
• Odor refresh: A baking-soda-and-warm-water soak can help with lingering smells; rinse well and air dry fully before refilling.

For beverages, look for containers designed for liquids.

• Check product details: Choose items described for drink storage with leak-resistant lids and a tight seal.
• Use case: These are generally best for cold, still drinks. Unless noted, they’re not intended for hot liquids or carbonated beverages.
• Capacity and opening: Pick a size that fits your portion (e.g., ~500 mL) and an opening that accommodates ice or a straw, if needed.
• Care before first use: Wash, then do a quick water test to confirm the seal.
• Transport: Keep upright in a bag; individual results can vary based on how the lid is closed and carried.

It’s easy to kit out your containers.

• On-page options: Many sets include spare lids, shaker inserts, and labels—check what’s included in the description.
• Compatibility: Measure your container’s diameter and note the closure type (screw-top vs. press-fit) to find a match.
• Search tips: Try terms like “replacement lids” or “spice labels,” then filter by size and style.
• Support: If you’re unsure, use the seller Q&A on the product page to confirm fit.
• Convenience: You can often choose store pickup or delivery options at checkout, based on availability in your area.