Dry ice is the solid form of carbon dioxide (CO2), existing at a temperature of -109.3°F (-78.5°C). It does not melt into a liquid; instead, it transitions directly into a gas through a process called sublimation. This intense cold makes it highly effective for flash-freezing items, preserving perishables during shipping, and creating dense fog effects for events. Knowing where to find this specialized product is the first step toward safely utilizing its powerful cooling capabilities.
Common Retailers for Immediate Needs
For small quantities needed quickly, the most accessible places to check are major national grocery chains and large big-box stores. These retailers often stock dry ice in dedicated, locked freezers, usually located near the standard ice machines or at the customer service desk. Availability is frequently seasonal, increasing during summer months for camping and shipping, or around holidays for special effects.
It is recommended to call the specific store location ahead of time to confirm their stock and hours of sale. Not all stores within a chain carry dry ice due to handling and storage requirements, and some may have age restrictions for purchase. These retail locations typically sell the dry ice in block form, which is suitable for standard cooler applications.
Specialized and Bulk Dry Ice Suppliers
When the requirement is for a large volume or a specific form, specialized suppliers are the best source. Industrial gas and welding supply companies frequently distribute dry ice in bulk quantities. These vendors cater to commercial needs and often offer the product in large blocks or as small pellets, which are better for precise cooling or blasting applications.
Dedicated ice and refrigeration companies also serve as suppliers for users needing significant amounts for long-term storage or industrial use. Purchasing from these specialized sources may require a scheduled pickup time or adherence to specific loading procedures. They are the go-to option for quantities exceeding 50 pounds, which is far more than most retail stores stock.
Preparation for Purchase (Cost and Quantity)
Dry ice is sold by the pound, with prices ranging from $1.00 to $3.00 per pound, depending on the supplier and quantity purchased. The product is available in large blocks, which sublimate slower for maximum duration, or in pellets, which are easier to portion and pack around an item. Customers should estimate how much is needed based on the cooling time required, as dry ice will sublimate at a rate of approximately five to ten pounds every 24 hours.
An insulated container, such as a foam or plastic cooler, is required for safe transport, but it must not be airtight. Dry ice turns into CO2 gas, and if the gas cannot escape, the pressure buildup can cause the container to rupture. Bringing an appropriate, non-sealed container is necessary, and some suppliers may require the purchaser to be 18 years of age or older.
Essential Safety and Handling Guidelines
Handling dry ice requires caution due to its temperature of -109.3°F, which can cause severe frostbite upon direct contact. Always use thick, insulated gloves or tongs when touching the solid ice to protect the skin from cryogenic burns. Never attempt to place dry ice in your mouth or ingest it.
The gas produced by sublimation, carbon dioxide, is heavier than air and can displace oxygen in a confined space. It is important to store and use dry ice only in well-ventilated areas, such as an open garage or outdoors, to prevent the risk of suffocation.
When transporting it in a vehicle, keep the windows open to allow the gas to dissipate and never place it in a sealed trunk. Any leftover dry ice must be disposed of by allowing it to sublimate completely in a safe, well-ventilated location away from people and pets; never dispose of it down a drain or in the trash.