Types and sizes
Compare blocks, slabs, nuggets and equipment-specific pellets.
Dry ice buying guide
Smart tips for buying dry ice
Choose the right seller, product form and quantity, then bring it home safely without losing more than necessary.
Choose a seller
Match the source to a quick retail pickup or a planned larger order.
Plan the quantity
Size the order around the container, conditions and full time window.
Handle it safely
Use insulated gloves, a vented cooler and fresh-air ventilation.
Call before leaving
Confirm today’s stock, pickup rules, minimum order and final price.
Choose the kind of seller that fits the order
A nearby grocery store may be perfect for a few pounds today and a poor fit for a scheduled commercial shipment. A supplier can appear in a search result without selling to walk-in customers, and a chain that carries dry ice in one store may not carry it in another.
| Seller type | Usually best for | Confirm before driving |
|---|---|---|
| Grocery or ice cream store | Small, same-day retail purchases | Store-level stock, form available and price per pound |
| Industrial gas branch | Blocks, pellets and repeat orders | Public walk-in sales, appointment rules and minimum quantity |
| Local manufacturer | Fresh product, bulk orders and more form choices | Retail pickup hours, order lead time and after-hours service |
| Delivered or shipped order | Planned orders when local pickup is impractical | Arrival day, starting weight, packaging cost and expected loss in transit |
The directory rule: “This chain sells dry ice” is not the same as “this location has it today.” Our listings identify the individual business page used and when its details were checked. Current stock still requires a phone call.
Match the form to the job
Shape changes how dry ice fits, how quickly it disappears and whether it works with specialized equipment. Product names are not perfectly consistent between suppliers, so ask for dimensions or pellet diameter when size matters.
Blocks and slabs
Less surface area is exposed to warm air, so a block usually lasts longer than the same weight of pellets. This is the first form to ask about for a freezer outage, camping cooler or longer holding period.
Pellets and nuggets
Smaller pieces spread around cartons and fill irregular spaces. Standard pellets are widely used for frozen-food and laboratory shipping, but they disappear faster than a solid block.
Rice pellets
Dry ice blasting commonly uses small, high-density pellets. Do not substitute a block or an arbitrary pellet size. Check the equipment manual and ask the supplier for the diameter and freshness required.
Product examples: Airgas dry ice forms and common applications.
Plan the quantity around the actual job
A pounds-per-day promise without knowing the container and conditions is not a useful estimate. Give the seller these five facts:
- What must stay frozen or chilled. Dry ice can freeze items that only need refrigeration.
- The inside dimensions and type of container. Insulation and empty space change the loss rate.
- The full time window. Include the drive home, packing time, shipment delay or outage duration.
- Expected temperature and access. A cooler in summer sun that opens hourly is not the same as one left closed indoors.
- The product form. Blocks generally trade packing flexibility for a slower loss rate.
A useful benchmark, not a universal formula50 lb for a full 18 cu. ft. freezer for about two days
North Dakota State University Extension gives this estimate for a power outage. It also notes that an upright freezer needs dry ice on each shelf and can require more than a chest freezer. A partly empty freezer is better consolidated into a smaller insulated space. See our power-outage guide for the full decision process.
For a cooler, event or shipment, ask the supplier to size the order. Add contingency time when a missed delivery or delayed event would spoil the contents.
Make the order last without trapping gas
Dry ice starts disappearing as soon as it is made. Buy it close to the time of use, keep it in a well-insulated container that can vent, and avoid opening the container just to check it. Keep the cooler shaded and use a container sized closely to the load.
Placement depends on the result you want. For frozen contents, dry ice is commonly placed above the load because cold air moves downward. For drinks or refrigerated food, separate the dry ice with cardboard, towels or regular ice so the contents do not freeze. Check that the cooler manufacturer permits dry ice, and never make the container airtight.
Do not use a household freezer as a storage strategy. Dry ice is much colder than a household freezer, it will still sublimate, and the released gas needs somewhere safe to go. Use an approved, vented insulated container in a well-ventilated location.
The 60-second call that prevents a wasted trip
“Hi, I need dry ice for [job] on [day and time]. Do you sell to the public, and is it in stock now? I need it to last [time] in a [container size/type].”
- Which forms and sizes are available today?
- What do you recommend for this use and time window?
- What is the minimum order and price per pound?
- Is there a box, cooler, handling or delivery charge?
- Can you reserve the order, and what is the pickup cutoff?
- Should I bring my own vented cooler and gloves?
Common buying questions
Can I buy dry ice at a grocery store?
Some grocery and ice cream stores sell dry ice by the pound, but participation and stock vary by individual location. Call the exact store, not the chain customer-service line, and ask whether dry ice is on hand today.
How much does dry ice cost?
There is no dependable national price. Local production, order size, product form, packaging and delivery all affect the quote. Ask for the price per pound, the minimum purchase and any cooler, box or delivery charge.
Do I need to order dry ice ahead of time?
Often, yes. Retail cabinets can sell out and industrial branches may have pickup cutoffs or appointment rules. Reserve it when timing matters, then collect it as close as practical to when you will use it.
How long does dry ice last in a cooler?
There is no fixed time. The amount and form of the dry ice, cooler insulation, empty space, outside temperature and how often the lid opens all change the result. Blocks generally last longer than the same weight of pellets.
Should I buy blocks or pellets?
Choose blocks when hold time matters. Choose pellets or nuggets when the dry ice needs to fit around packages or spread through a container. Blasting equipment usually requires a specific small pellet size, so confirm the machine specification before ordering.
Can I carry dry ice in a car?
Dry ice releases carbon dioxide gas, so vehicle ventilation is essential. Use a vented insulated container, keep fresh outside air moving through the vehicle, never leave it in a parked passenger vehicle and unload promptly.
Before pickup: read the handling and transport guide. Dry ice can injure bare skin, pressurize a sealed container and create a dangerous carbon dioxide concentration in an enclosed vehicle or room.